Complete the following sentence: A cadet branch of the Mantua Gonzagas became dukes of Nevers and Rethel in France when Luigi (Louis) Gonzaga, a younger son of Federico II Gonzaga, Duke of Mantua, and Margherita Paleologa, married the heiress. Complete the following sentence: A cadet branch of the Mantua Gonzagas became dukes of Nevers and Rethel in France when Luigi (Louis) Gonzaga, a younger son of Federico II Gonzaga, Duke of Mantua, and Margherita Paleologa, married the heiress. The Gonzaga-Nevers later came to rule Mantua again when Louis's son Charles (Carlo) inherited Mantua and Montferrat, triggering the
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