Cosimo Fancelli was an Italian

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 sculptor of the Baroque

Baroque

The Baroque is a period and the style that used exaggerated motion and clear, easily interpreted detail to produce drama, tension, exuberance, and grandeur in sculpture, painting, literature, dance, and music...

 period, active mainly in Rome

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...

. He was the son of the artist Carlo Fancelli from Arezzo

Arezzo

Arezzo is a city and comune in Central Italy, capital of the province of the same name, located in Tuscany. Arezzo is about 80 km southeast of Florence, at an elevation of 296 m above sea level. In 2011 the population was about 100,000....

. Like his brother, the sculptor Giacomo Antonio Fancelli

Giacomo Antonio Fancelli

Giacomo Antonio Fancelli was an Italian sculptor in stone and stucco of the Baroque era. He was the brother of Cosimo Fancelli and a pupil of Bernini...

, he began his career as an assistant in the studio of Bernini. He is said to have helped sculpt the figure of the Nile in the Fountain of the Four Rivers

Fontana dei Quattro Fiumi

The Fontana dei Quattro Fiumi or "Fountain of the Four Rivers" is a fountain in Rome, Italy, located in the urban square of the Piazza Navona...

 at Piazza Navona

Piazza Navona

Piazza Navona is a city square in Rome, Italy. It is built on the site of the Stadium of Domitian, built in 1st century AD, and follows the form of the open space of the stadium. The ancient Romans came there to watch the agones , and hence it was known as 'Circus Agonalis'...

, though this is also attributed to his brother Giacomo.

He then allied with Pietro da Cortona

Pietro da Cortona

Pietro da Cortona, by the name of Pietro Berrettini, born Pietro Berrettini da Cortona, was the leading Italian Baroque painter of his time and also one of the key architects in the emergence of Roman Baroque architecture. He was also an important decorator...

, and helped with the decoration at Santi Luca e Martina

Santi Luca e Martina

Santi Luca e Martina is a church in Rome, Italy, situated between the Roman Forum and the Forum of Caesar and close to the Arch of Septimus Severus.-History:...

 (c. 1649), Santa Maria della Pace

Santa Maria della Pace

Santa Maria della Pace is a church in Rome, central Italy, not far from Piazza Navona.The current building was built on the foundations of the pre-existing church of Sant'Andrea de Aquarizariis in 1482, commissioned by Pope Sixtus IV. The church was rededicated to the Virgin Mary to remember a...

 (1656), Santa Maria in Via Lata

Santa Maria in Via Lata

Santa Maria in Via Lata is a church on the Via del Corso , in Rome, Italy.-History:It is claimed that St. Paul spent two years here, in the crypt under the church, whilst under house arrest waiting for his trial. This conflicts with the tradition regarding San Paolo alla Regola...

 (c. 1660), San Carlo al Corso

San Carlo al Corso

Sant'Ambrogio e Carlo al Corso is a basilica church in Rome, Italy, facing onto the central part of the Via del Corso. It is dedicated to Saint Ambrose of Milan and Saint Charles Borromeo, also a native of that city...

 (after 1665), and the vault of the Chiesa Nuova

Chiesa Nuova

Chiesa Nuova may refer to:*Santa Maria in Vallicella, a church in Rome, Italy*Chiesa Nuova , a church in Assisi, Italy*Chiesa Nuova , a Franciscan performing arts ministry based in Chicago, Illinois...

 (1662–65). Among the pupils of Cosimo was Francesco Cavallini. In 1669-1669, Bernini assigned him to complete the Angel with Sudarium on Ponte Sant'Angelo

Ponte Sant'Angelo

Ponte Sant'Angelo, once the Aelian Bridge or Pons Aelius, meaning the Bridge of Hadrian, is a Roman bridge in Rome, Italy, completed in 134 AD by Roman Emperor Hadrian, to span the Tiber, from the city center to his newly constructed mausoleum, now the towering Castel Sant'Angelo...

.