Antonio de San Gregorio (died 1661) was a Roman Catholic prelate who was appointed as Bishop of Nueva Caceres, Philippines from 1659 to 1661.
[1][2] Antonio de San Gregorio was ordained a priest in the Order of Friars Minor.
[2] On 17 November 1659, he was appointed during the papacy of Pope Alexander VII as Bishop of Nueva Caceres.
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