Бернабо Висконти
He was the son of Obizzo III, who had ruled in Ferrara from 1317 to 1352. After inheriting his lands from Aldobrandino III, he allied with Padua, Verona and Mantua against Bernabò Visconti and, after a meeting at Viterbo, he managed to obtain also the support of Pope Urban V (1367).