Welf of Swabia
Welf of is no longer alive.

 Heilwig (Edith) of Saxony
Heilwig (Edith) of was born in 0780.  She died after 0833.

 Conrad I of Argengau
Conrad I of was born in 0800 in Burgundy, France.

 Judith the Fair of Bavaria
Judith the Fair of was born in Bavaria.  She died in Tours, Indre-Et-Loire, France.

 Rudolf of Troyes
He died in 0866.

 Emma of Bavaria