Guido Luca Ferrero
Guido Luca Ferrero was born in Turin on May 18, 1537, the son of Sebastiano Ferrero, signore of Casalvolone and Villata, and his wife Maddalena Borromeo, daughter of Federico Borromeo, 6th count of Arona and a member of the House of Borromeo. He was the grand-nephew of Cardinals Gianstefano Ferrero and Bonifacio Ferrero; the nephew of Cardinals Filiberto Ferrero and Pier Francesco Ferrero; and the cousin of Cardinal Charles Borromeo.
Pope Pius IV made him a cardinal deacon in the consistory of March 12, 1565. He participated in the papal conclave of 1565-66 that elected Pope Pius V. He received the red hat and the deaconry of Sant'Eufemia (a titular church declared a deaconry pro illa vice) on February 8, 1566. On March 6, 1566, he opted for the deaconry of Santi Vito, Modesto e Crescenzia. He participated in the papal conclave of 1572 that elected Pope Gregory XIII. He resigned the government of the Diocese of Vercelli sometime before October 17, 1572.
He was governor of Spoleto from 1572 to 1578. He became Prior of Santa Maria di Pellionex in 1572, and provost of San Martino degli Umiliati, Vercelli in 1575. On October 25, 1581, he was appointed papal legate in Romagna. He was named Governor of Faenza ca. 1583. He participated in the papal conclave of 1585 that elected Pope Sixtus V.