Kammala wannan magana: A shekara ta 1627, zuriyar Gonzaga ta ƙare tare da Vincenzo II mai mugunta da rauni, kuma Mantua a hankali ya ragu a ƙarƙashin sababbin masu mulki, Gonzaga-Nevers, wani reshen Faransa na dangin. Ƙungiyar
Yaƙin maye gurbin Mantua ya ɓarke, kuma a cikin 1630 rundunar sojojin Imperial 36,000 Landsknecht mercenaries sun kewaye Mantua, suna kawo annoba tare da su. Ferdinand Carlo IV, mai mulki mara kyau, wanda kawai sha'awarsa shine gudanar da bukukuwa da wasan kwaikwayo, ya haɗu da Faransa a cikin War of Succession na Spain. Bayan da Faransa ta sha kaye, ya nemi mafaka a Venice kuma ya tafi da hotuna dubu. Bayan mutuwarsa a shekara ta 1708, an ayyana Duke na Mantua a matsayin wanda aka tsige shi kuma danginsa na Gonzaga sun rasa Mantua har abada a cikin Habsburgs na Austria.