Catherine of Cleves, Duchess consort regent of Guelders (d. 1479)
Catherine of Cleves (25 May 1417 – 10 February 1479) was Duchess of Guelders by marriage to Arnold, Duke of Guelders. She acted as regent of Guelders during the absence of her spouse in 1450. The Hours of Catherine of Cleves was commissioned for her.