Valdemar II "Sejr" was born on June 28th, 1170 in Ribe, Denmark. Valdemar II "Sejr"'s father was Valdemar I "The Great" and his mother was Sofiya Vladimorovna. His paternal grandfather was 4. He had a sister named Richiza. He was the older of the two children. He died at the age of 70 on March 28th, 1241 in Ribe, Denmark.