Ulrich I Ct of Argengau

Ulrich I's father was Gerold I (Childebrand) Duke of Swabia and his mother was Imma de Allemania.  His paternal grandfather was Gerold Bishop of Mayence; his maternal grandfather was Hnabi Duke of Allemania. He had a brother and a sister, named Hadrian and Hildegarde.  He died after 0808.¹