Giovanni Luigi Guarini (died November 1579) was a Roman Catholic prelate who served as Bishop of Aquino (1579)."Bishop Giovanni Luigi Guarini" Catholic-Hierarchy.org. David M. Cheney. Retrieved March 29, 2016
On 30 March 1579, Giovanni Luigi Guarini was appointed during the papacy of Pope Gregory XIII as Bishop of Aquino. He served as Bishop of Aquino until his death in November 1579.
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