Giovanni Marquet (died 1499) was a Roman Catholic prelate who served as Bishop of Patti (1494–1499).Catholic-hierarchy.org: "Bishop Giovanni Marquet, O.P." retrieved February 14, 2016
He was ordained a priest in the Order of Preachers. On 16 June 1494, he was appointed by Pope Alexander VI as Bishop of Patti. He served as Bishop of Patti until his death in 1499.
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