Flavio Chigi (8 September 1711 – 12 July 1771), Prince of Farnese, Duke of Ariccia and Prince of the Holy Roman Empire, was an Italian Roman Catholic cardinal. He was a member of the noble Chigi family, nephew of Fabio Chigi, Pope Alexander VII.
Born in Rome as a member of the Chigi family, he was created cardinal by Pope Benedict XIV in 1753.
Flavio Chigi is the name of three cardinals:
Flavio Chigi (10 May 1631 - 13 September 1693) was an Italian Catholic Cardinal and Duke of Ariccia. He was Cardinal-Nephew to Pope Alexander VII and became a powerful political force inside the Roman Catholic Church during the latter half of the 17th century.
Flavio Chigi was born 10 May 1631 in Siena, the son of Mario Chigi and Berenice della Ciaia (a noblewoman from Siena). He studied philosophy and law and obtained a doctorate in utroque iuris. When his uncle Fabio Chigi was made Legate to Germany, Chigi followed him there but was soon sent back to Italy to complete his studies.
In 1656, he was made Governor of Fermo and in 1658 he was made Governor of Tivoli. In the meantime, his uncle had been elected Pope in 1655 and had taken the papal throne as Pope Alexander VII. In 1657, Chigi was appointed as his Cardinal-Nephew.
Upon his elevation to Cardinal, Chigi was appointed Cardinal-Priest of Santa Maria del Popolo.
In 1659, at the death of Cardinal Luigi Capponi, Chigi was appointed Librarian of the Holy Roman Church and held the role for several years.