Козимо III Медичи
Federico Ubaldo married Claudia de' Medici in 1621 and was made Duke by his father. However, Federico died in 1623 from an epileptic attack, leaving only a daughter, Vittoria Della Rovere, wife of Ferdinando II de' Medici, Grand Duke of Tuscany; their child was Cosimo III de' Medici, Grand Duke of Tuscany; none of Cosimo III's children had heirs.