Adelaide of Holland
Member of the House of Holland
Adelaide of Holland, was a Countess of Hainaut by marriage to John I, Count of Hainaut. She acted as the regent of the County of Holland during the minority of her nephew Count Floris V between 1256 and 1263. Wikipedia
Born: 1230
Died: April 9, 1284 (age 54 years), Valenciennes, France
Great-grandparents: Floris III, Count of Holland, Ada of Scotland, Otto I, Count of Guelders, and more
Spouse: John I, Count of Hainaut (m. 1246)
Children: John II, Count of Holland, Guy of Avesnes, Florent of Hainaut, and more
Grandchildren: William I, Count of Hainaut, John of Beaumont, Mary of Avesnes, and more