The House of Nassau is a European royal house that originated in the 11th century. It has played a significant role in the history of the Netherlands and Luxembourg. The house is known for its various branches, including the House of Nassau-Weilburg and the House of Nassau-Dillenburg, which have produced many notable rulers. Members of the House of Nassau have held various titles, including the Grand Duke of Luxembourg and the King of the Netherlands. The house's most famous member is William of Orange, who led the Dutch revolt against Spanish rule in the 16th century, ultimately contributing to the establishment of Dutch independence.