ARIBO [I], son of CHADALHOH Graf im Isengau & his wife --- (-13 Feb 1000, bur Seeon). The primary source which confirms his parentage has not yet been identified. It is assumed that it is no more than speculation, based on transmission of the name Chadalhoh to his son. Pfalzgraf von Bayern 985. He founded Seeon in 974 and Göss in 999. "Otto…Romanorum imperator augustus" granted privileges to Kloster Seeon founded by "Arbonis comitis" by charter dated 15 Apr 999[1083]. The necrology of Seeon records the death "XVI Kal Mar" of "Aribo palatinus fundator hic iacet"[1084].
m as her first husband, ADELA, daughter of HARTWIG [I] Pfalzgraf von Bayern & his wife --- (-7 Sep after 1020). The primary source which confirms her parentage has not yet been identified. The necrology of Seeon records the death "VII Id Sep" of "Adala com ux Aribonis" and her donation[1085]. According to Wegener[1086], she married secondly Engelbert [III] Graf im Chiemgau [Sieghardinger]. However, the Seeon necrology entry appears to exclude the possibility that this second marriage is correct.
Pfalzgraf Aribo [I] & his wife had seven children
note Philippe: ascendance incertaine