Gijsbrecht van Aemstel is a 17th-century Dutch play written by Joost van den Vondel. It is considered one of the most important works in Dutch literature and is often performed during the New Year celebrations in Amsterdam. The play tells the story of Gijsbrecht, a nobleman who faces challenges and conflicts as he defends his homeland against invaders. The narrative is set in the medieval period and explores themes of loyalty, honor, and the struggle for freedom. Gijsbrecht's character embodies the virtues of bravery and resilience, making the play a significant cultural symbol in Dutch history.