Nicholas of Holstein-Rendsburg

Nicholas, also called Claus of Holstein (1321–1397), was the second son of Count Gerhard III and Sophia of Werle. From 1340 he co-ruled Holstein-Rendsburg, first with his brother Henry II and later with his nephews.

In 1375 he became co-ruler of Schleswig, ruling alone after Henry's death until in 1386 he yielded it to Henry's son Gerhard VI. In 1390 he inherited Holstein-Kiel with his nephews, uniting nearly all Holstein. He died at Itzehoe on 8 May 1397.