Adelaide of Waldeck (c. 1264 – c. 1339-1342) was a daughter of Lord Henry III of Waldeck and his wife Matilda of Arnsberg-Cuyk (also known as Matilda of Rietberg-Arnsberg).She married on 24 November 1276 to Simon I of Lippe and had the following children: Bernard (1277-1341), Bishop of Paderborn Herman (d. c. 1324), a cleric Hendrik (d. c. 1336), acleric Diedrich (d. after 8 September 1326), Knight in the Teutonic Order Simon (d. c. 1332) Otto († 1360), Lord of Lippe in Lemgo Bernard V (d.