Qui es va casar amb Anastasia von Wittenberg?

Valdemar IV Eriksøn (born c. 1262, died 1312) was Duke of Schleswig from 1283 until his death in 1312. He was the eldest son of Duke Eric I of Schleswig and Margaret of Rugia.

Gerhard IV (c. 1277 – 1323), was Count of Holstein-Plön from 1312 until his death.