Giovanni Visconti (died
5 October 1354) was an Italian Roman Catholic
cardinal, who was co-ruler in
Milan and lord of other Italian cities.
He was the son of
Matteo I Visconti and
Bonacosa Borri.
He was elected archbishop by the Capitol of Milan in 1317, but
Pope John XXII refused to confirm the election and enforced instead Aircardus from Comodeia to that position. In 1323 John excommunicated him with the accuse of heresy, and Visconti found an ally in the
antipope Nicholas V, who give him the cardinal title. In 1331 he became bishop and lord of
Novara, and in 1339, after Aicardus' death, he triumphally entered in Milan, although only in 1342 Clement VI issued a bull confirming him in the archbishopric.
In the meantime, together with his brother
Luchino, Visconti had bought from the Pope the title of co-ruler of Milan, for 500,000
florins. After Luchino's death, he associated in the lordship the sons of his other brother,
Stefano,
Matteo II,
Bernabò and
Galeazzo II).
In 1352 he was lord of Genoa, to which, in the following year, he added
Bologna and
Novara. He died in 1354.
Giovanni Visconti's grave.
