- This article is not about Niccolò Fortiguerra (1674-1735), bishop and poet, author of Ricciardetto
He became bishop of Teano in 1458, and Cardinal in 1460. In 1462 he campaigned in the Papal States against Sigismondo Pandolfo Malatesta, taking Fano. Later, in 1465, he defeated Deifobo d'Anguillara in battle.
He died at Viterbo in 1473.