Henry III of Holstein-Rendsburg (1397 - Flensburg, May 28, 1427) Count of Holstein and Duke of Schleswig 1404-1427 was the son of Gerard III and Katharina Elisabeth von Braunschweig-Lüneburg (died between 1417 and 1422). < / p>
His father passed away on August 4, 1404, at Dithmarschen. His mother acted as guardian for the 7-year-old Hendrik. In 1408 the house Holstein was in war with Margaretha and Erik VII of Denmark over the Duchy of Schleswig. In 1413 his mother carried over the regency. Through the Hanseatic city of Lübeck in 1417, there was a ceasefire between the warring parties, which was broken again in 1423. Hendrik died on May 28, 1427 at the Siege of Flensburg. He is buried in the St. Lauren church in Itzehoe, built in 1196.
He was succeeded by his brother Adolf (as Adolf VIII in Holstein and Adolf I in Schleswig). Saint Lauren Church in Itzehoe
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