Gian Giacomo Bruni (died 1507) was a Roman Catholic prelate who served as Bishop of Nepi e Sutri (1506–1507).
[1][2] On 6 February 1506, Gian Giacomo Bruni was appointed during the papacy of Pope Julius II as Bishop of Nepi e Sutri.
[1][2] He served as Bishop of Nepi e Sutri' until his death in 1507.
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