Radelchis I of Benevento
Radelchis I (died 851) was the treasurer
A treasurer is the person responsible for running the treasury of an organization. The adjective for a treasurer is normally "tresorial". The adjective "treasurial" normally means pertaining to a treasury, rather than the treasurer.-Government:...

, then prince of Benevento from 839, when he assumed the throne upon the assassination (possibly his instigation) of Sicard
Sicard of Benevento
Sicard was the Prince of Benevento from 832. He was the last prince of a united Benevento which covered most of the Mezzogiorno. On his death, the principality descended into civil war which split it permanently...

 and imprisonment of Sicard's brother, Siconulf, to his death, though in his time the principality was divided.

According to the Chronica S. Benedicti Casinensis, the gastald
A gastald was a Lombard official in charge of some portion of the royal demesne with civil, martial, and judicial powers. By the Edictum Rothari of 643, the gastalds were given the civil authority in the cities and the reeves the like authority in the countryside...

of Capua
Capua is a city and comune in the province of Caserta, Campania, southern Italy, situated 25 km north of Naples, on the northeastern edge of the Campanian plain. Ancient Capua was situated where Santa Maria Capua Vetere is now...

, Landulf the Old
Landulf I of Capua
Landulf I , called the Old, was the first gastald of Capua of his illustrious family, which would rule Capua until 1058. According to the Cronaca della dinastia di Capua, he ruled in Old Capua for twenty five years and four months and in New Capua for another year and eight months...

, who had been an ally of Sicard, freed the imprisoned Siconulf and, with the support of Guaifer
Guaifer of Salerno
Guaifer was the Prince of Salerno from 861. The son of Daufer the Mute and grandson of Daufer the Prophet, he was the first of the Dauferidi to sit on the Salernitan throne which his family dominated unobstructed until 977.Guaifer's sister, Adelchisa, married Sicard of Benevento and when Sicard...

, chief of the Dauferidi family of Salerno
Salerno is a city and comune in Campania and is the capital of the province of the same name. It is located on the Gulf of Salerno on the Tyrrhenian Sea....

, brought him to that city to be proclaimed prince in opposition to Radelchis. This was the beginning of a civil war which was to last more than a decade.

In 841, Radelchis brought in the aid of Saracen
Saracen was a term used by the ancient Romans to refer to a people who lived in desert areas in and around the Roman province of Arabia, and who were distinguished from Arabs. In Europe during the Middle Ages the term was expanded to include Arabs, and then all who professed the religion of Islam...

 mercenaries, as Andrew II of Naples
Andrew II of Naples
Andrew II was the duke of Naples from 834 to 840. During his reign, he was constantly at war with the Lombards and he allowed Gaeta, his vassal, to move towards independence under its own consuls....

 had four years prior. The mercenaries sacked the city of Capua, forcing Landulf to found a new capital nearby on the hill of Triflisco. Siconulf responded by leasing his own band of Saracens. The depredations of the two Christian rulers and their Saracen helpers so disturbed the king of Italy
King of Italy
King of Italy is a title adopted by many rulers of the Italian peninsula after the fall of the Roman Empire...

, Louis II
Louis II, Holy Roman Emperor
Louis II the Younger was the King of Italy and Roman Emperor from 844, co-ruling with his father Lothair I until 855, after which he ruled alone. Louis's usual title was imperator augustus , but he used imperator Romanorum after his conquest of Bari in 871, which led to poor relations with Byzantium...

, that when he was crowned co-emperor
Holy Roman Emperor
The Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...

 in 850, he immediately set out to pacify the Mezzogiorno
The Midday is a wide definition, without any administrative usage, used to indicate the southern half of the Italian state, encompassing the southern section of the continental Italian Peninsula and the two major islands of Sicily and Sardinia, in addition to a large number of minor islands...

. In 851, he forced a peace on Radelchis and Siconulf and expelled the Saracens from Benevento (warriors from the Emirate
An emirate is a political territory that is ruled by a dynastic Muslim monarch styled emir.-Etymology:Etymologically emirate or amirate is the quality, dignity, office or territorial competence of any emir ....

 of Bari
Bari is the capital city of the province of Bari and of the Apulia region, on the Adriatic Sea, in Italy. It is the second most important economic centre of mainland Southern Italy after Naples, and is well known as a port and university city, as well as the city of Saint Nicholas...

, whom Radelchis happily betrayed). He divided the principality permanently. Radelchis did not live long thereafter and was succeeded by his son Radelgar
Radelgar of Benevento
Radelgar was the eldest son of Radelchis I of Benevento and he succeeded him as Prince of Benevento on his death in 851. Radelgar's mother was Caretrude and his brother was Adelchis....



  • Gwatkin, H.M., Whitney, J.P. (ed) et al. The Cambridge Medieval History: Volume III. Cambridge University Press
    Cambridge University Press
    Cambridge University Press is the publishing business of the University of Cambridge. Granted letters patent by Henry VIII in 1534, it is the world's oldest publishing house, and the second largest university press in the world...

    , 1926.
  • Caravale, Mario (ed). Dizionario Biografico degli Italiani: LXIII Labroca – Laterza. Rome
    Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

    , 2004.
  • Chronica S. Benedicti Casinensis.
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