Ernst married Duchess of Swabia Gisele about 1003/04 in of Schwaben, Bavaria. Gisele (daughter of Hermann II Duke Swabia and Duchess of Burgundy Gerberga) was born on 11 Nov 989 in of Schwaben, Bavaria; died on 14 Feb 1043; was buried on 16 Feb 1043. [Group Sheet] [Family Chart]