Matilda of Tuscany (Italian: Matilde, Latin: Matilda, Mathilda) (1046  24 July 1115) was an Italian noblewoman, the principal Italian supporter of Pope Gregory VII during the Investiture Controversy. She is one of the few medieval women to be remembered for her military accomplishments. She is sometimes called la Gran Contessa (the Great Countess) or Matilda of Canossa after her ancestral castle of Canossa.