Adelaide of Waldeck
Adelaide of Waldeck (c. 1264 – c. 1339–1342) was a daughter of Henry III, Count of Waldeck, and Matilda of Arnsberg-Cuyk. On 24 November 1276 she married Simon I, Lord of Lippe, and bore him at least eleven children.
Her sons included Bernard, bishop of Paderborn from 1321, and Otto and Bernard V, who divided Lippe between them on Simon's death in 1344 and ruled at Lemgo and Rheda.