Lycurgus cup
Encyclopedia
The Lycurgus Cup is a Roman glass
Roman glass
Roman glass objects have been recovered across the Roman Empire in domestic, industrial and funerary contexts. Glass was used primarily for the production of vessels, although mosaic tiles and window glass were also produced. Roman glass production developed from Hellenistic technical traditions,...

 cage cup
Cage cup
A cage cup, Greek diatreton, also vas diatretum, plural diatreta, or "reticulated cup" is a type of luxury Late Roman glass vessel, found from roughly the 4th century, and "the pinnacle of Roman achievements in glass-making"...

 now in the British Museum
British Museum
The British Museum is a museum of human history and culture in London. Its collections, which number more than seven million objects, are amongst the largest and most comprehensive in the world and originate from all continents, illustrating and documenting the story of human culture from its...

, made of a dichroic glass, which shows a different colour depending on whether or not light is passing through it; red when lit from behind and green when lit from in front. It is the only complete Roman glass object made from this type of glass, and the one exhibiting the most impressive change in colour; it has been described as "the most spectacular glass of the period, fittingly decorated, which we know to have existed".

The cup is also a very rare example of a complete Roman cage-cup, or diatretum, where the glass has been painstakingly cut and ground back to leave only a decorative "cage" at the original surface-level. Many parts of the cage have been completely undercut. Most cage-cups have a cage with a geometric abstract design, but here there is a composition with figures, showing the mythical King Lycurgus
Lycurgus (Thrace)
In Greek mythology, Lycurgus was the king of the Edoni in Thrace, son of Dryas, the "oak", and father of a son whose name was also Dryas. He banned the cult of Dionysus. When Lycurgus heard that Dionysus was in his kingdom, he imprisoned Dionysus's followers, the Maenads, or drove them and...

, who (depending on the version) tried to kill Ambrosia, a follower of the god Dionysus
Dionysus
Dionysus was the god of the grape harvest, winemaking and wine, of ritual madness and ecstasy in Greek mythology. His name in Linear B tablets shows he was worshipped from c. 1500—1100 BC by Mycenean Greeks: other traces of Dionysian-type cult have been found in ancient Minoan Crete...

 (Bacchus to the Romans). She was transformed into a vine that twined around the enraged king and restrained him, eventually killing him. Dionysus and two followers are shown taunting the king. The cup is the "only well-preserved figural example" of a cage cup.

The glass

The dichroic effect is achieved by making the glass with tiny proportions of minutely ground gold and silver dust. To a conventionally composed Roman glass flux 330 parts per million of silver and 40 of gold were added: "These particles were precipitated as colloids and form a silver-gold alloy. When viewed in reflected light the minute metallic particles are just coarse enough to reflect enough of the light without eliminating the transmission. In transmitted light the fine particles scatter the blue end of the spectrum more effectively than the red end, resulting in red transmission, and this is the colour observed. Since it is impossible that the Roman artisans managed to add these incredibly low levels of silver and gold to the volume of the glass used to make the vessel deliberately, the levels were probably added at higher levels to a larger volume of glass-melt, and increasingly diluted by adding more glass." The particles are only about 70 nanometers across, and embedded in the glass, so they cannot be seen by optical microscopy, and a transmission electron microscope is needed instead. At this size they approach the size of the wavelengths of visible light, and a surface plasmon resonance
Surface plasmon resonance
The excitation of surface plasmons by light is denoted as a surface plasmon resonance for planar surfaces or localized surface plasmon resonance for nanometer-sized metallic structures....

 effect takes place.

The interior of the cup is mostly smooth, but behind the main figures the glass has been hollowed out, well beyond even the main outer surface, so that they are of similar thickness to the main outer surface, giving an even colour when light passes through. This is a feature unique among surviving cups; Harden suggests they were an "afterthought". An area around the torso of Lycurgus is a rather different colour from the rest of the glass; perhaps an accident of manufacture, but one exploited by the glass-cutter "so that he could make Lycurgus's rage glow even more strongly". After the very lengthy cutting stage the fine polished appearance was achieved by a process called "flame polishing" that risked the complete loss of the object. A suggestion in 1995 that in fact this and other cage cups used a mixture of moulding and cutting has met with little acceptance.

Like the British Museum's other spectacular work in Roman glass, the cameo glass
Cameo Glass
Cameo glass is a luxury form of glass art produced by etching and carving through fused layers of differently colored glass to produce designs, usually with white opaque glass figures and motifs on a dark-colored background...

 Portland Vase
Portland Vase
The Portland Vase is a Roman cameo glass vase, currently dated to between AD 5 and AD 25, which served as an inspiration to many glass and porcelain makers from about the beginning of the 18th century onwards. Since 1810 the vase has been kept almost continuously in the British Museum in London...

, the cup represents to some extent the extension of skills developed by cutters of engraved gems, or the larger hardstone carving
Hardstone carving
Hardstone carving is a general term in art history and archaeology for the carving for artistic purposes of semi-precious stones, also known as gemstones, such as jade, rock crystal , agate, onyx, jasper, serpentine or carnelian, and for an object made in this way. Normally the objects are small,...

 of vessels in semi-precious stones, which were luxury arts with enormous prestige in ancient Rome. No carved gemstone vessels directly comparable to either work are known, but the general taste behind these extreme exhibitions of glass-making skill is one formed by objects in natural stones like the Coupe des Ptolémées or the Rubens Vase. Indeed it was not until the first full studies of the cup in 1950 that it was established for certain that the material was glass and not a gemstone, which had previously been in question.

It seems likely that as many of three separate workshops or factories will have been involved in the whole process, perhaps not in the same part of the Empire. The glass may have been initially made in a large block of standard clear glass, perhaps in Egypt or Palestine
Palestine
Palestine is a conventional name, among others, used to describe the geographic region between the Mediterranean Sea and the Jordan River, and various adjoining lands....

, which both exported great quantities of glass for forming, and sometimes colouring, elsewhere. The thick "blank" dichroic vessel was probably made by one specialist workshop and passed to another consisting of specialist cutters. This would certainly have been a rare and highly expensive object, and the secrets of its manufacture, possibly not well understood even by its makers, seem only to have been used for about a century.

There are various small losses, of which face of the panther is the most significant, and the cup is cracked; the British Museum has never removed the metal rim for this reason. The base or foot of the cup is damaged, and the original form of the base uncertain. The Metropolitan Museum of Art
Metropolitan Museum of Art
The Metropolitan Museum of Art is a renowned art museum in New York City. Its permanent collection contains more than two million works, divided into nineteen curatorial departments. The main building, located on the eastern edge of Central Park along Manhattan's Museum Mile, is one of the...

, in New York has a fragment measuring 2 3/16 x 3 in. (56 x 76 mm) of a satyr from a dichroic cage cup that turns from olive green to "reddish amber".

Iconography

The figure of Lycurgus, bound by the vine and naked apart from boots, is flanked on the left by a crouching Ambrosia, at a considerably smaller scale. Behind her one of Dionysus's satyr
Satyr
In Greek mythology, satyrs are a troop of male companions of Pan and Dionysus — "satyresses" were a late invention of poets — that roamed the woods and mountains. In myths they are often associated with pipe-playing....

s (shown with a normal human form) stands on one foot as he prepares to hurl a large rock at Lycurgus. In his other hand he holds a pedum or shepherd's crook. To the right of Lycurgus comes first a figure of Pan, then at his feet rather canine-looking panther
Panthera
Panthera is a genus of the family Felidae , which contains four well-known living species: the tiger, the lion, the jaguar, and the leopard. The genus comprises about half of the Pantherinae subfamily, the big cats...

, the traditional companion of Dionysus, whose face is missing but was presumably snapping at the king, and then the god himself, taunting him with his right arm extended in an angry gesture. Dionysus carries a thyrsus
Thyrsus
In Greek mythology, a thyrsus or thyrsos was a staff of giant fennel covered with ivy vines and leaves, sometimes wound with taeniae and always topped with a pine cone. These staffs were carried by Dionysus and his followers. Euripides wrote that honey dripped from the thyrsos staves that the...

, the special staff of the god and his followers, and his dress has an Eastern, perhaps Indian, flavour, reflecting what the Ancient Greeks generally believed (perhaps wrongly) about the origins of his cult. The calf section of one leg has been lost. A streamer hanging behind him from his thyrsus overlaps the raised foot of the satyr with the rock, completing the circle of the cup.

It has been suggested that this not very common scene was a reference to the defeat in 324 by the Emperor Constantine I
Constantine I
Constantine the Great , also known as Constantine I or Saint Constantine, was Roman Emperor from 306 to 337. Well known for being the first Roman emperor to convert to Christianity, Constantine and co-Emperor Licinius issued the Edict of Milan in 313, which proclaimed religious tolerance of all...

 of his co-emperor Licinius
Licinius
Licinius I , was Roman Emperor from 308 to 324. Co-author of the Edict of Milan that granted official toleration to Christians in the Roman Empire, for the majority of his reign he was the rival of Constantine I...

, who was killed in 325 after a period under close guard. Another suggestion is that the colour change from green to red was understood as evoking the ripening of red grapes, so that there was a particular suitability in depicting a scene with the god of wine. The cup may have been intended for use at Bacchic cult celebrations, still very much a feature of Roman religious life around 300. A letter suppposedly from the Emperor Hadrian
Hadrian
Hadrian , was Roman Emperor from 117 to 138. He is best known for building Hadrian's Wall, which marked the northern limit of Roman Britain. In Rome, he re-built the Pantheon and constructed the Temple of Venus and Roma. In addition to being emperor, Hadrian was a humanist and was philhellene in...

 (d. 138) to his brother-in-law Servianus
Lucius Julius Ursus Servianus
Lucius Julius Ursus Servianus was a Spanish Roman politician. According to an inscription found, his full name is Gaius Julius Servilius Ursus Servianus, however in Augustan History, he is known as Lucius Julius Ursus Servianus. Little is known on his origins.Servianus was a prominent public...

, quoted in a biography in the Historia Augusta, records the gift of two dichroic cups, which the 4th century author had seen: "I have sent you particoloured cups that change colour, presented to me by the priest of a temple. They are specially dedicated to you and my sister. I would like you to use them at banquets on feast days."

Other depictions of the story tend to either depict Lycurgus attacking Ambrosia, often with a double-headed axe, while her companions rush to her aid, or Lycurgus alone, entangled in the vine. The closest parallel to the scene on the cup is one of the apse
Apse
In architecture, the apse is a semicircular recess covered with a hemispherical vault or semi-dome...

 mosaics in the triconch triclinium
Triclinium
A triclinium is a formal dining room in a Roman building. The word is adopted from the Greek τρικλίνιον, triklinion, from τρι-, tri-, "three", and κλίνη, klinē, a sort of "couch" or rather chaise longue...

at the Villa del Casale
Villa Romana del Casale
Villa Romana del Casale is a Roman villa built in the first quarter of the 4th century and located about 5 km outside the town of Piazza Armerina, Sicily, southern Italy...

, Piazza Armerina
Piazza Armerina
Piazza Armerina is an Italian comune in the province of Enna of the autonomous island region of Sicily.-History:...

, which may also refer to Licinius. There is also a mosaic at Antioch on the Orontes, and a group on a 2nd century sarcophagus
Sarcophagus
A sarcophagus is a funeral receptacle for a corpse, most commonly carved or cut from stone. The word "sarcophagus" comes from the Greek σαρξ sarx meaning "flesh", and φαγειν phagein meaning "to eat", hence sarkophagus means "flesh-eating"; from the phrase lithos sarkophagos...

 at the Villa Parisi
Villa Parisi
Villa Parisi - Borghese is a villa in Frascati, now in Monte Porzio Catone municipal territory, Italy. It was built between 1604 and 1605 by Mons. Fernando Taverna. In 1615 it was acquired by Cardinal Scipione Borghese. Later a nymphaeum and the stately portal were built together villa's extension...

 in Frascati
Frascati
Frascati is a town and comune in the province of Rome in the Lazio region of central Italy. It is located south-east of Rome, on the Alban Hills close to the ancient city of Tusculum. Frascati is closely associated with science, being the location of several international scientific...

. There is also a floor-mosaic from Vienne
Vienne
Vienne is the northernmost département of the Poitou-Charentes region of France, named after the river Vienne.- Viennese history :Vienne is one of the original 83 departments, established on March 4, 1790 during the French Revolution. It was created from parts of the former provinces of Poitou,...

, now in the museum at Saint-Romain-en-Gal
Saint-Romain-en-Gal
Saint-Romain-en-Gal is a commune in the Rhône department in eastern France.-References:*...

, with Lycurgus alone inside the vine. The preceding scene of Lycurgus attacking Ambrosia, is on a floor-mosaic at Brading Roman Villa
Brading Roman Villa
Brading Roman Villa was a Roman courtyard villa which has been excavated and put on public display in Brading on the Isle of Wight.-1879 - present day:...

 on the Isle of Wight
Isle of Wight
The Isle of Wight is a county and the largest island of England, located in the English Channel, on average about 2–4 miles off the south coast of the county of Hampshire, separated from the mainland by a strait called the Solent...

. Of this and similar mosaics, Martin Henig says: "In cases such as this, we are not concerned with simple, popular paganism but with recondite knowledge. This is the sort of esoteric religion which the Emperor Julian
Julian
Julian is a common male given name in Britain, United States, Ireland, Germany, Poland, the Netherlands, France , Spain, Latin America and elsewhere....

, Symmachus
Quintus Aurelius Symmachus
Quintus Aurelius Symmachus was a Roman statesman, orator, and man of letters. He held the offices of governor of Africa in 373, urban prefect of Rome in 384 and 385, and consul in 391...

, Praetextatus
Vettius Agorius Praetextatus
Vettius Agorius Praetextatus was a wealthy pagan aristocrat in 4th-century Roman Empire and a high priest in the cults of numerous gods...

, Macrobius and Proclus
Proclus
Proclus Lycaeus , called "The Successor" or "Diadochos" , was a Greek Neoplatonist philosopher, one of the last major Classical philosophers . He set forth one of the most elaborate and fully developed systems of Neoplatonism...

 relished. The religious thought behind these floors is probably deeper and more complex than contemporary Christianity and many of the keys to understanding it have been lost."

The cup was probably designed for drinking from at feasts, or more specifically Bacchic cult celebrations, where the lack of a foot, also a feature found in other cage-cups, may mean it was passed around, as elaborate cups often were in medieval cultures. Alternatively other cage cups were almost certainly used, suspended, as oil lamp
Oil lamp
An oil lamp is an object used to produce light continuously for a period of time using an oil-based fuel source. The use of oil lamps began thousands of years ago and is continued to this day....

s, where the dichroic effect of this cup would show to advantage.

History

The cup was "perhaps made in Alexandria
Alexandria
Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...

" or Rome in about 290-325 AD, and measures 16.5 x 13.2 cm. From its excellent condition it is probable that, like several other luxury Roman objects, it has always been preserved above ground; most often such objects ended up in the relatively secure environment of a church treasury. Alternatively it might, like several other cage cups, have been recovered from a sarcophagus
Sarcophagus
A sarcophagus is a funeral receptacle for a corpse, most commonly carved or cut from stone. The word "sarcophagus" comes from the Greek σαρξ sarx meaning "flesh", and φαγειν phagein meaning "to eat", hence sarkophagus means "flesh-eating"; from the phrase lithos sarkophagos...

. The present gilt-bronze rim and foot were added in about 1800, suggesting it was one of the many objects taken from church treasuries during the period of the French Revolution
French Revolution
The French Revolution , sometimes distinguished as the 'Great French Revolution' , was a period of radical social and political upheaval in France and Europe. The absolute monarchy that had ruled France for centuries collapsed in three years...

 and French Revolutionary Wars
French Revolutionary Wars
The French Revolutionary Wars were a series of major conflicts, from 1792 until 1802, fought between the French Revolutionary government and several European states...

. The foot continues the theme of the cup with open-work vine leaves, and the rim has leaf forms that lengthen and shorten to match the scenes in glass. In 1958 the foot was removed by British Museum conservators, and not rejoined to the cup until 1973. There may well have been earlier mounts.

The early history of the cup is unknown, and it is first mentioned in print in 1845, when a French writer said he had seen it "some years ago, in the hands of M. Dubois". This is probably shortly before it was acquired by the Rothschild family
Rothschild family
The Rothschild family , known as The House of Rothschild, or more simply as the Rothschilds, is a Jewish-German family that established European banking and finance houses starting in the late 18th century...

. Certainly Lionel de Rothschild
Lionel de Rothschild
Baron Lionel Nathan de Rothschild was a British banker and politician.-Biography:The son of Nathan Mayer Rothschild and Hanna Barent Cohen, he was a member of the prominent Rothschild family....

 owned it by 1862, when he lent it to an exhibition at what is now the V&A Museum, after which it virtually fell from scholarly view until 1950. In 1958 Victor, Lord Rothschild
Victor Rothschild, 3rd Baron Rothschild
Nathaniel Mayer Victor Rothschild, 3rd Baron Rothschild, GBE, GM, FRS was a biologist by training, a cricketer and a member of the prominent Rothschild family...

 sold it to the British Museum for £20,000, £2,000 of which was donated by the Art Fund (then the NACF). The cup is now on display, lit from behind, in Room 50 (it forms part of the museum's Department of Prehistory and Europe rather than the Greece and Rome Department). It is considered able to travel to important exhibitions, and in 2008 was exhibited in "Reflecting Antiquity, Modern Glass Inspired by Ancient Rome" at the Corning Museum of Glass
Corning Museum of Glass
The Corning Museum of Glass, in Corning, New York, explores every facet of glass, including art, history, culture, science and technology, craft, and design....

 in Corning, New York
Corning (city), New York
Corning is a city in Steuben County, New York, United States, on the Chemung River. The population was 10,842 at the 2000 census. It is named for Erastus Corning, an Albany financier and railroad executive who was an investor in the company that developed the community.- Overview :The city of...

, in 2003 at the Hayward Gallery
Hayward Gallery
The Hayward Gallery is an art gallery within the Southbank Centre, part of an area of major arts venues on the South Bank of the River Thames, in central London, England. It is sited adjacent to the other Southbank Centre buildings and also the Royal National Theatre and British Film Institute...

 in London in "'Saved! 100 Years of the National Art Collections Fund", and in 1987 in "Glass of the Caesars" in the British Museum, Cologne
Cologne
Cologne is Germany's fourth-largest city , and is the largest city both in the Germany Federal State of North Rhine-Westphalia and within the Rhine-Ruhr Metropolitan Area, one of the major European metropolitan areas with more than ten million inhabitants.Cologne is located on both sides of the...

, Milan
Milan
Milan is the second-largest city in Italy and the capital city of the region of Lombardy and of the province of Milan. The city proper has a population of about 1.3 million, while its urban area, roughly coinciding with its administrative province and the bordering Province of Monza and Brianza ,...

, and Rome.

Further reading

  • Harden D.B. and Toynbee J.M.C., The Rothschild Lycurgus Cup, 1959, Archaeologia, Vol. 97,
  • Scott, G. A Study of the Lycurgus Cup, 1995, Journal of Glass Studies (Corning), 37
  • Tait, Hugh (editor), Five Thousand Years of Glass, 1991, British Museum Press
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