Carlo de' Vecchi was born in
Siena,
Italy in 1611. He held the degree of
Doctor in utroque iure, and was a Referendary of the Tribunal of the Two Signatures. He was ordained a priest in December 1647. In 1644, he served as governor of Faenza. On 2 March 1648, he was appointed
Bishop of Chiusi by
Pope Innocent X. He held the title of Archbishop of Athens until his death on 13 March 1673. ==Episcopal succession==