Christina of Lorraine or Chretienne de Lorraine (16 August 1565 – 19 December 1637) was a member of the House of Lorraine and was the Grand Duchess of Tuscany by marriage. She served as Regent of Tuscany jointly with her daughter-in-law during the minority of her grandson from 1621.
Read more about Christina Of Lorraine: Princess of Lorraine, Regent of Tuscany, Issue, Ancestry