Giovanni Giacomo Mattei was the founder of one powerful branch of the
house of Mattei
200px, Cortile Mattei di Giove
The House of Mattei was one of the most powerful noble families of Rome during the Middle Ages and early modern era, holding high positions in the papal curia and government office. The family amassed significant a ...
. He was Count Palatine of the Lateran Palace and a Conservatore of Rome, 1451. He married in 1437 to Isabella dei conti dell'Anguillara.
Year of birth missing
Year of death missing
G
15th-century Italian nobility
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