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Katherine of Bavaria (c. 1361–1400 AD, Hattem), was the eldest child of Albert I, Duke of Bavaria and his first wife Margaret of Brieg. She was Duchess of Guelders and Jülich by her marriage to William I of Guelders and Jülich.

Edward (12 March 1336 – 24 August 1371) was the duke of Guelders and count of Zutphen from 1361 until 1371. Upon his brother Reginald becoming Duke of Guelders, Edward led a civil war culminating in the battle at Tiel, capturing his brother in 1361. Edward became Duke of Guelders, but in a dispute with Wenceslaus I of Luxembourg was killed at the battle of Baesweiler in 1371. His brother Reginald inherited the duchy from him.

Wilhelm (ur. w 1363 lub 1364, zm. 16 lutego 1402 w Arnhem) – książę Geldrii i hrabia Zutphen od 1371, książę Jülich od 1393.