He had also received a cardinalate on Ferdinando 's succession .
He had also had dismissed it in 1616 to be able to marry his relative Isabella Gonzaga , daughter of Alfonso Gonzaga , Count of Novellara .
He had also received a cardinalate on Ferdinando 's succession , but had dismissed it in 1616 to be able to marry his relative Isabella Gonzaga , daughter of Alfonso Gonzaga , Count of Novellara .