Ernst Herzog von Schwaben ⁵¹³

  Notater:

Ernest I (died 31 March or 31 May 1015) was the Duke of Swabia (1012-1015). He was a younger son of Leopold I, the Babenberg Margrave of Austria. His mother was called Richardis of Sualafeldgau.

Ernst blev gift med Gisela von Schwaben, datter af Hermann II Herzog von Schwaben og Gerberge de Bourgogne, omkring 1012. (Gisela von Schwaben blev født den 11 Nov. 990 og døde den 14 Feb. 1043 i Goslar, , Niedersachsen, Germany.)