bishop of Padua. Born of a noble family and educated at Venice, he took part in the Congress of Munster (1648), which ended the Thirty Years' War through the Treaty of Westphalia. He was ordained priest in 1655 and worked heroically in the plague of 1657. Then Alexander VII promoted him to the see of Bergamo, made him a cardinal (1660), and transferred him to Padua in 1664.
Barbarigo's many-sided personality was reflected in his diverse achievements. He founded a college and a seminary; he provided a fine patristic library and a printing-press, some of whose products were distributed to Christians in Moslem countries. He also worked hard to secure reunion with the Eastern Churches. His pastoral commitment was comparable to that of Charles Borromeo and he is said to have given at least 8,000 crowns in charity. As cardinal he took part in five conclaves and was himself considered a serious candidate for the papacy. He died on 15 June and was buried in Padua cathedral. He was beatified in 1761 and canonized in 1960. Feast: 18 June.
Works ed. by P. Uccelli (1879) and more completely by S. Serena (1963). See also C. Bellinati, S. Gregorio Barbarigo (1960), and Pensieri e massime di S. Gregorio (1962);N.C.E., ii. 88;Bibl. SS., vii. 387–403.