Frederick I von Hohenstauffen Duke of Alsace

Frederick I von Hohenstauffen was born about 1050.¹   Frederick I von Hohenstauffen's father was Frederick van Büren von Hohenstaufen and his mother was Hildegarde von Hohenlohe.  His paternal grandfather was Frederick van Büren; his maternal grandfather was Otto II von Hohenlohe of Swabia Duke of Swabia.  He was an only child.  He died on April 6th, 1105.¹