Mario Cossa (died 1618) was a Roman Catholic prelate who served as Bishop of Montalcino (1607–1618).
[1] Mario Cossa was born in Siena, Italy.
[2] On 2 Apr 1607, he was appointed during the papacy of Pope Paul V as Bishop of Montalcino.
[1][2] On 29 Apr 1607, he was consecrated bishop by Roberto Francesco Romolo Bellarmino, Cardinal-Priest of San Matteo in Merulana, with Antonio Caetani (iuniore), Archbishop of Capua, and Metello Bichi, Bishop Emeritus of Sovana, serving as co-consecrators.
This article about a 17th-century Italian Catholic bishop or archbishop is a stub.