Career
She was a younger sister of Philippa of Hainault, Queen of England, and Margaret II of Hainault. She was the Duchess of Jülich by marriage. Philippa was the grandmother of Richard II of England, making Joanna his great-aunt.
She was a younger sister of Philippa of Hainault, Queen of England, and Margaret II of Hainault. She was the Duchess of Jülich by marriage. Philippa was the grandmother of Richard II of England, making Joanna his great-aunt.