Elizabeth of Nevers was Duchess of Cleves from 1455 until her death, due to her marriage with John I of Cleves-Mark. She acted as regent of the Ducky of Cleves during the absence of her spouse in 1477.
She was the matriarch of the house of... Wikipedia
Born: 1439, Nevers, France
Died: June 21, 1483 (age 44 years)
Great grandchildren: François I, Duke of Nevers, Anne of Cleves, William, Duke of Jülich-Cleves-Berg, and more
Grandchildren: John III, Duke of Cleves, Charles II, Count of Nevers, Engelbert von der Mark-Kleve, and more
Parents: John II, Count of Nevers
Children: Engelbert, Count of Nevers, John II, Duke of Cleves, Philip of Cleves, and more
Great-grandparents: Philip the Bold, Margaret III, Countess of Flanders, and Philip of Artois, Count of Eu