Page "Holstein" Paragraph 14

* Holstein-Rendsburg, branch county between 1290 and 1474, partitioned from Holstein-Itzehoe, acquired a share of Holstein-Segeberg ( first ) in 1316, and Holstein-Kiel in 1390, in 1381 / 1384 Holstein-Segeberg ( second ) was partitioned from Holstein-Rendsburg, but reverted in 1403, elevated to ducal rank in 1474