We have four duplicate profiles for him, all of them erroneously connected to "Malcolm MacHeth". His dates alone makes this absolutely impossible (he was one to two generations *older* than MacHeth).
His actual ancestry is *not* known, although he may have been a son of "HERBERT de Ros (-after 13 Jan 1103). "…Herbertus de Ros…" witnessed the charter dated 13 Jan 1103 which records an agreement between “Philippus de Braosa” and the abbey of Fécamp[840]." http://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3P-S.htm#_To...
The other duplicates are:
Piers de Ros
Piers de Ros
Piers de Ros
They ALL need disconnection from MacHeth of Ross.