Giovanni Castiglione de Polena (died 1 Sep 1456) was a Roman Catholic prelate who served as Bishop of Orvieto (1454–1456) and Bishop of Penne e Atri (1433–1454).
[1][2][3] On 23 Mar 1433, Giovanni Castiglione was appointed by Pope Eugene IV as Bishop of Penne e Atri.
[1] While bishop, he was the principal co-consecrator of Canute Mikkelsen, Bishop of Viborg (1452).
[1] On 21 Oct 1454, he was appointed Bishop of Orvieto by Pope Nicholas V.[1] He served as Bishop of Orvieto until his death on 1 Sep 1456.
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