The House of Ascania is a noble family that originated in the region of Saxony, Germany. It played a significant role in the history of the Holy Roman Empire and was influential from the 10th century onwards. The family is known for its various branches, including the Dukes of Saxony and the Margraves of Brandenburg. Members of the House of Ascania were involved in numerous political and military endeavors throughout the Middle Ages. They contributed to the development of several territories and held important titles, impacting the governance and culture of the regions they ruled.