King Valdemar II of Bohemia, also known as Valdemar the Great, ruled from 1170 to 1222. He was a member of the Premyslid dynasty and played a significant role in the development of the Czech lands. Valdemar is known for his efforts to strengthen the central authority of the monarchy and expand his territory. During his reign, Valdemar II faced various challenges, including conflicts with neighboring states and internal disputes. He was involved in the Crusades and sought to enhance the influence of the Catholic Church in his realm. His legacy includes the promotion of trade and the establishment of towns, contributing to the region's growth.