[1] Pietro Vecchia was born in Venice, Italy on 8 January 1628 and ordained a priest in the Order of Saint Benedict.
[2][3] On 6 March 1690, he was appointed during the papacy of Pope Alexander VIII as Bishop of Andria.
[1][2] On 6 March 1690, he was consecrated bishop by Pietro Francesco Orsini de Gravina, Archbishop of Benevento, with Giuseppe Bologna, Archbishop Emeritus of Benevento, and Gregorio Giuseppe Gaetani de Aragonia, Titular Archbishop of Neocaesarea in Ponto, serving as co-consecrators.
[2] On 19 December 1691, he was appointed during the papacy of Pope Innocent XII as Bishop of Molfetta.
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