Prince Valdemar of Denmark was born on October 26, 1858, and was a member of the Danish royal family. He was the son of King Christian IX of Denmark and Queen Louise. Valdemar served in the Danish Navy and held the title of Duke of Slesvig. Throughout his life, Valdemar was known for his interest in maritime affairs and his contributions to naval education. He never married and spent much of his later years in Copenhagen, where he passed away on January 14, 1939. His legacy is remembered as part of Denmark's royal history.