Valdštejn, also known as Wallenstein, was a prominent military leader and politician in the early 17th century. He played a significant role during the Thirty Years' War, commanding the Imperial army for the Holy Roman Empire. Valdštejn was known for his strategic prowess and ambitious nature, which ultimately led to his downfall. The term "Valdštejn" also refers to various locations and structures in the Czech Republic, including the Valdštejn Palace in Prague. This palace, built in the early 17th century, showcases Baroque architecture and is now home to the Czech Senate. Valdštejn's legacy continues to influence Czech history and culture.