Antonio Bichi (1614–1691) was a Roman Catholic cardinal.
Biography He was born in Siena to Onorata Mignanelli and Fermano Bichi. Antonio's maternal uncle was Pope Alexander VII, who named him cardinal in pectore by 1657.Istoria dell'antichissima città di Osimo, Volume 2, by Marcantonio Talleoni, page 174.
On 8 Dec 1652, he was consecrated bishop by Niccolò Albergati-Ludovisi, Cardinal-Priest of Santa Maria degli Angeli e dei Martiri, with Ranuccio Scotti Douglas, Bishop Emeritus of Borgo San Donnino, and Filippo Casoni (bishop), Bishop of Borgo San Donnino, serving as co-consecrators.
While bishop, he was the principal consecrator of Paolo Pecci, Bishop of Massa Marittima (1679).
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