Joanna of Hainault (1315–1374) was a Duchess of Jülich by marriage to William V, Duke of Jülich. She was the third daughter of William I, Count of Hainaut, and Joan of Valois. She was a younger sister of Philippa of Hainault, Queen of England, and Margaret II, Countess of Hainault.

Life[edit]

Joanna married William V, Duke of Jülich, their children were as follows:

• Gerhard VI of Jülich, Count of Berg and Ravensberg, grandfather of Adolph I, Duke of Cleves
• William II, Duke of Jülich
• Richardis of Jülich, married Count Engelbert III of the Mark
• Philippa of Jülich, married Godfrey II of Heinsberg
• Reinold
• Joanna of Jülich, married William I, Count of Isenburg-Wied
• Isabella of Jülich, married John Plantagenet, 3rd Earl of Kent

Ancestry[edit]