Frederick of Luxembourg Luxembourgian noble (0965–1019) Parents Hedwig of Nordgau Siegfried of Luxembourg Children Adalbero III of Luxembourg Frederick, Duke of Lower Lorraine Gisela von Luxemburg Hermann of Gleiberg Henry VII, Duke of Bavaria Giselbert of Luxembourg Imiza of Luxembourg Siblings Henry V, Duke of Bavaria Theodoric II of Luxemburg Giselbert Ogive of Luxembourg Lutgardis of Luxemburg Cunigunde of Luxembourg Adalbero von Luxemburg Eva von Luxemburg Partners Irmentrude van de Wetterau