Prince William of Nassau was a prominent figure in the 17th century, known for his role in the Eighty Years' War against Spanish rule in the Netherlands. Born in 1533, he became the leader of the Dutch revolt and is often referred to as the "Father of the Fatherland" in the Netherlands. His efforts were crucial in establishing Dutch independence. He was a member of the House of Nassau, a noble family that played a significant role in European history. Prince William's legacy includes the founding of the Dutch Republic, which became a major economic and cultural power in the 17th century.