Caterina de' Medici, Governor of Siena

Caterina de' Medici
Duchess consort of Mantua and Montferrat
Tenure	16 February 1617 – October 29, 1626
Governor of Siena
Tenure	1627 – 17 April 1629
Born	(1593-05-02)2 May 1593 Palazzo Pitti, Florence, Tuscany
Died	17 April 1629(1629-04-17) (aged 35) Siena, Tuscany
Burial	Basilica of San Lorenzo, Florence 43°46′30″N 11°15′13″E / 43.774991°N 11.253659°E / 43.774991; 11.253659
Spouse	Ferdinand, Duke of Mantua and Montferrat
House	House of Medici
Father	Ferdinando I, Grand Duke of Tuscany
Mother	Christina of Lorraine

Caterina de' Medici (2 May 1593 – 17 April 1629) was a Tuscan noblewoman of the Medici family. She became Duchess of Mantua and Montferrat as the second wife of Duke Ferdinando and Governor of Siena from 1627. She was the second daughter of Grand Duke Ferdinando I of Tuscany and his wife Christina of Lorraine.