Frederick I Duke of Swabia and Alsace

  General Notes:

Weis" "Ancestral Roots. . ." (45:24).

  Noted events in his life and other information:

• He had a residence in Hohenstauffen.

Frederick married Agnes of Saxony, daughter of Heinrich IV Holy Roman Emperor and Bertha of Savoy. (Agnes of Saxony was born in 1074-1075 and died in 1143.)