Matilda of Tuscany (Italian: Matilde di Canossa [maˈtilde di kaˈnɔssa], Latin: Matilda, Mathilda; c. 1046 – 24 July 1115 or Matilda of Canossa after her ancestral castle of Canossa), also referred to as la Gran Contessa ("the Great Countess"), was a member of the House of Canossa (also known as the Attonids) in the second half of the eleventh century. Matilda was one of the most important governing figures of the Italian Middle Ages. She reigned in a period of constant battles, political intrigues and Roman-Catholic excommunications, and was able to demonstrate an innate and skilled strategic leadership capacity in both military and diplomatic matters.