The siege of Venlo in 1373 is one of the many sieges which the Dutch city of Venlo has known. This siege was the first in a long line of sieges which the city has known for centuries. By the end of the 13th century, Johan van Broeckhuysen was lent the allodium of Venlo as Knight by the Count of Guelders. Around 1300, Van Broeckhuysen had build an enhanced Stone House (City Hall). The underground vaults of the house still exist, but in 1597, from the ground floor a new City Hall was built. John of Blois lost the battle, and thus the city of Venlo, and the duchy was joined to the Jülich duchy.