 After being recognized as a vassal of the Holy See, he again became independent and went over to the House of Este, whom he served faithfully in their struggles with the Church until his death in 1346.His son Bernardino, who succeeded him as lord of Ravenna in 1346, was deposed in 1347 by his brothers, Pandolfo and Lamberto II, but was reinstated a few months later and ruled until his death in 1359; he was famous for his profligacy and cruelty.His son Guido III ruled more mildly and died in 1390.