Borgia, Alessandro an Italian prelate and theologian, was born at Velletri in 1682, and died' Feb. 14, 1764. He was archbishop of Fermo, and left the following works: Vita di San: Geraldo (Velletri, 1698): — Istoria della Chiesa e Citta di Velletri, in quattro libri (Nocera, 1723): — Vita Benedicti X-III (Rome. 1741): — Letters collected by Muratori: — Homlies: — and some other works. See Hoefer, Nouv. Biog. Generale, s.v.