Countess Matilda of Tuscany, or Matilda of Canossa (1046-1115), an Italian noblewoman, played a fundamental role in the Investiture Controversy. As a powerful feudal lord, she expanded the Canossa domain over the territories of northern Italy. In 1076, she gained control over Lombardy, Emilia, Romagna, and Tuscany. The Magna Comitissa was a captivating and influential figure in medieval Italy, displaying notable leadership strength in times of conflict and excommunications. Her resilience in the face of adversity makes her an icon of Italian medieval history.