Giacomo Boncompagni
Pope Gregory XIII's son
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Giacomo Boncompagni was an Italian feudal lord of the 16th century, the illegitimate son of Pope Gregory XIII. He was also Duke of Sora, Aquino, Arce and Arpino, and Marquess of Vignola.
A member of the Boncompagni family, he was a patron of arts... Wikipedia
Born: May 8, 1548, Bologna, Italy
Died: August 18, 1612 (age 64 years), Sora, Italy
Great grandchildren: Gregorio II Boncompagni, Antonio I Boncompagni, Giulia d'Avalos, and more
Parents: Pope Gregory XIII
Spouse: Costanza Sforza (m. 1576)
Grandchildren: Giacomo II Boncompagni, III duca di Sora, Ugo Boncompagni, IV duca di Sora, Anna de Guevara, and more
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