Welf I of Altorf, b: -




		^{Rothard fra Argengau}^{b. d.}

^{Conrad I, Count of Auxerre}^{b. d.}	^{Welf I of Altorf}^{b. d.825}

^{Judith of Bavaria}^{b. d.}

^{Rudolph, Count of Ponthieu}^{b. d.866}

^{Hemma of Altorf}^{b. d.}		^Isambart^{b. d.}

^{Mathilda d'Andech von Altdorf}^{b. d.}	^{Hedwig, Duchess of Bavaria}^b.778 d.