Ernst Duke of SWABIA, MARGRAVE OF AUSTRIA
He married Gisele Duchess of Swabia, Empress of the Holy Roman Empire 1012 at of Schwaben, Bavaria . Gisele Duchess of Swabia, Empress of the Holy Roman Empire was born at of Schwaben, Bavaria 11 Nov 999 daughter of Hermann II Duke of Swabia and Gerberga Princess of Burgundy, Duchess of Swabia .
They were the parents of 3
children:
Ernst II Duke of Swabia
born 1014.
Hermann IV Duke of Swabia
born Abt 1015.
Leopold Duke of Swabia
born Abt 1016/17.
Ernst Duke of Swabia, Margrave of Austria died 31 May 1015 .
Gisele Duchess of Swabia, Empress of the Holy Roman Empire died 14 Feb 1043 .