Giovanni Antonio de' Vecchi (died 1672) was a Roman Catholic prelate who served as Bishop of Ischia (1663–1672).
[1][2] On 12 Feb 1663, Giovanni Antonio de' Vecchi was appointed during the papacy of Pope Alexander VII as Bishop of Ischia.
[1][2][3] On 18 Feb 1663, he was consecrated bishop by Giulio Cesare Sacchetti, Cardinal-Bishop of Sabina.
[3] He served as Bishop of Ischia until his death in Apr 1672.
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