Her maternal grandprents were Federico I Gonzaga , Marquess of Mantua and Margaret of Bavaria .
The eldest daughter of Gilbert , Count of Montpensier , and Clara Gonzaga , her paternal grandparents were Louis I , Count of Montpensier and Gabriele de La Tour d'Auvergne .
Clara Gonzaga 's maternal grandprents were Federico I Gonzaga , Marquess of Mantua and Margaret of Bavaria .
The eldest daughter of Gilbert , Count of Montpensier , and Clara Gonzaga , her paternal grandparents were Louis I , Count of Montpensier and Gabriele de La Tour d'Auvergne .