 His wife, Altéa Fredrika Meijer (dead 1759 or 1760), was a daughter of the tradesman in Liège, Conrad Meijer, and Anna Katarina de Besche, who in turn was daughter of Georg de Besche, ennobled de Besche (1641-1711) and Althea Bothler (1646-1704) (see above).The Keijser line became extinct with its founder.The Romanovs