Frederick Hohenstaufen I
Frederick was born about 1073.

 Agnes of Fanconia Germany
Agnes of Fanconia was born in Klosterneuberg,Niederosterreich,Austria.

 Duke of Swabia Frederick (The One-eyed) *Hohenstaufen II
Frederick, known as The One-eyed, was born in 1090 in Stauffen Castle,Swabia,Bavaria.  He died at the age of 57 on April 6th, 1147.