Giovanni Antonio Astorch or Giovanni Antonio Astorco (died 1567) was a Roman Catholic prelate who served as Bishop of Lettere-Gragnano (1565–1567).
[1] On 7 November 1565, Giovanni Antonio Astorch was appointed during the papacy of Pope Pius IV as Bishop of Lettere-Gragnano.
[1][2] He served as Bishop of Lettere-Gragnano until his death in 1567.
[2] While bishop, he was the principal co-consecrator of Felice Peretti Montalto, Bishop of Sant'Agata de' Goti (1567).
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