Waldemar I

Waldemar I (born January 14, 1131, died May 12, 1182) was the king of Denmark from 1157 to 1182. He is credited with ending the threat to Danish shipping posed by the Wends (Slavs), achieving independence from the Holy Roman Emperor, and securing church approval for hereditary rule by his dynasty, the Valdemars.1

Valdemar I was the son of Knud Lavard, duke of South Jutland. After over 25 years of civil wars, Valdemar became the sole ruler of Denmark. He initiated campaigns against the Wends, with the support of Bishop Absalon of Roskilde. By 1169, Danish forces had captured the Wendish stronghold of Rügen and stormed the sanctuary at Arcona. Valdemar also acknowledged the overlordship of Holy Roman Emperor Frederick I, but later renounced this, asserting Danish independence. He also worked to strengthen Danish defenses against potential German attacks.1