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Apr 12, 2024 · Valdemar IV Atterdag (born c. 1320, Denmark—died October 24, 1375, Zealand) was the king of Denmark (1340–75) who united his country under his own rule after a brief period of alien domination. His aggressive foreign policy led to conflict with Sweden, North German principalities, and the North German trading centres of the Hanseatic League.
Duke of Schleswig. At the death of Valdemar IV in the spring of 1312, he immediately succeeded his father as Duke of Schleswig. Shortly afterwards, he participated in the expedition of his feudal overlord, King Eric VI of Denmark, to Rostock. During this expedition, on 30 June in the camp outside Warnemünde, he was formally installed as Duke.
Valdemar was the son of Canute Lavard, Duke of Schleswig, the chivalrous and popular eldest son of King Eric I of Denmark. Valdemar's father was murdered by King Magnus I of Sweden days before the birth of Valdemar; his mother, Ingeborg of Kiev , daughter of Grand Prince Mstislav I of Kiev and Christina Ingesdotter of Sweden , named him after ...
Christopher (Danish: Christoffer Valdemarsen; 1341 – 11 June 1363), Duke of Lolland, was the son of King Valdemar IV of Denmark and his wife, Helvig of Schleswig. Christopher was appointed duke in 1359 and also was selected to succeed as king. He was first mentioned in 1354–55, and in 1358 was sent by his father to Nyborg to negotiate with ...
Adelaide of Holstein-Rendsburg. Valdemar III (1314–1364) was King of Denmark from 1326 to 1329, while he was underage; he was also Duke of Schleswig as Valdemar V in 1325–26 and from 1330 to 1364. He was a rival king set up against the unsuccessful Christopher II and was widely opposed by his subjects. His term was ended when he abdicated.
Helvig was the daughter of Eric II, Duke of Schleswig, and Adelaide of Holstein-Rendsburg, and the sister of Valdemar V, Duke of Schleswig. She was also a descendant of King Eric X of Sweden. Her date of birth is not known, but she and her brother were children at the time of her father's death in 1325, and she is estimated to have been born ...
In 1363, Valdemar IV renewed his alliance with Poland. He appointed his friend and advisor Henning Podebusk (c. 1350 – c. 1388) to negotiate with the Hanseatic League in his absence. They agreed to a truce so long as Valdemar acknowledged their right to free trade and fishing rights in the Sound.
