Frederick I of Hohenstauffen, Duke of Alsace & Swabia

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Frederick I of Hohenstauffen, Duke of Alsace & Swabia, son of Frederick, Lord of Büren and Hildegarde (…), was born about 1050.1 He died 20 January 1105,1 and was buried at Lorch, Germany.1

Frederick married Agnes of Germany, daughter of Henry IV, King of the Germans and Holy Roman Emperor and Berta of Savoy, 1086/87.1


Agnes of Germany b. 1072/73, d. 24 Sep 1143
This person was last edited on6 Jul 2016


  1. [S248] George Andrews Moriarty, The Plantagenet Ancestry of King Edward III and Queen Philippa (Salt Lake City, Utah: Mormon Pioneer Genealogy Society, 1985), 166, further cited as Moriarty, Plantagenet Ancestry.