It is assumed that he was related in some way to the Swabian Graf Chadalhoh.
Graf im Isengau 926/58. "Otto…rex" granted property to "nostri servum Reginpreht" at the request of "ducis…Perehtoldi et Hiltibaldi comitis cuidam…comiti…Cadelahc" by charter dated 22 Sep 942. "Otto…rex" transferred property "in villa Niuchinga in pago Hehsinga in comitatu Eberhardi comitis" to St Emmeram, Regensburg by charter dated 16 Jul 950 which also refers to property "in villa Helphendorph sitam in Friero marca in comitatu Biligrimi comitis et Sigehardi in Sneideseo et Kadalhoi Ysinachgouue". "Otto…rex" granted property "in loco Riut iuxta Enum fluvium in pago Sundargouue in comitatibus Ratolfi, Chadalhohi, Otacarii ac Sigihardi comitum" to St Emmeram, Regensburg by charter dated 9 Jun 959.
The necrology of Seeon records the death "XI Kal Jan" of "Kadalhoh abb h l". It is not known with certainty that this entry relates to Chadalhoh, possible father of Pfalzgraf Aribo. However, in this necrology certain names, including the name in this entry, are written in capital letters many of which can be identified as Aribo himself and members of his immediate family. It is possible that Aribo installed his father as abbot of Seeon at its foundation in 974. No record of another Abbot Chadalhoh has been found. The necrology of St Gall records the death "II Kal Aug" of "Chadeloi comitis".
The name of Chadalhoh's wife is not known. 1
Research Notes: