Nielsen Hayden genealogy
Family: Frederick of Büren / Hildegard of Egisheim-Dagsburg (F60)
m. Abt 1042-
Father | Male
Frederick of Büren
Born Abt 1020 Died 1053 Buried Married Abt 1042 [1] Father Frederick | F5288 Group Sheet Mother Adelheid of Filsgau | F5288 Group Sheet
Mother | Female
Hildegard of Egisheim-Dagsburg
Born Abt 1028 Died Abt 1095 Buried Father Gerhard I | F91 Group Sheet Mother
Child 1 | Male
+ Frederick I of Swabia
Born Abt 1050 Died Bef 21 Jul 1105 Buried Lorch Abbey, Baden-Württemberg, Germany 
Spouse Agnes of Germany | F52 Married Abt 1086
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