Rubuta ci gaba ga wannan sakin layi - A cikin 1627, Duke Vincent II ya mutu ba tare da magada ba, yana kawo ƙarshen asalin Gonzagas. Daga 1628 zuwa 1631, yaƙin nasara
An yi yaƙi tsakanin Duke na Guastalla, wanda aka goyi bayan Daular Roman Empire, da Duke na Nevers, wanda Faransa ta goyi baya, don ikon Duchy na Mantua. A ƙarshe, Duke na Nevers an gane shi ne kawai Duke.