Giovanni Battista Lomellino (died 1599) was a Roman Catholic prelate who served as Bishop of Isernia (1567–1599)[1] and Bishop of Guardialfiera (1562–1567).
[2] On 17 April 1562, Giovanni Battista Lomellino was appointed during the papacy of Pope Pius IV as Bishop of Guardialfiera.
[2][3][4] On 17 March 1567, he was appointed during the papacy of Pope Pius V as Bishop of Isernia.
)[1][3][4] He served as Bishop of Isernia until his death on 22 November 1599.
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