Kata Kunci Pencarian:
- William I of Guelders and Jülich
- Duchy of Jülich
- William, Duke of Jülich-Cleves-Berg
- William II, Duke of Jülich
- Reginald III, Duke of Guelders
- William I
- Duchy of Guelders
- Katherine of Bavaria
- Counts and dukes of Guelders
- Reinald IV, Duke of Guelders and Jülich
