Keats-Rohan, K.S.B., Domesday Descendants, A Prosopography of Persons Occurring in English Documents 1066-1166. Vol II: Pipe Rolls to Cartae Baronum. Bury St Edmunds, Suffolk: Boydell Press, 2002. NYPL ARF 03-4178 vol 2. Corrections at http://users.ox.ac.uk/~prosop/domesday-descendants-corrigenda.pdf Information from this source tagged as [Ref: Keats-Rohan DD p[0-9]*].
Sources for birth and parent Information
father:
illeg son [Ref: Keats-Rohan DD p236, Keats-Rohan DD p987]
Sources with Information about marriage to Beatrice
names:
[Ref: Keats-Rohan DD p236]
Research Notes:
identified in records as "Robert frater Comitis' [Ref: Keats-Rohan DD p987]
occurs in charters of his half-brother Conan IV [Ref: Keats-Rohan DD p987]
with his wife Beatrice, gave 9 acres of land in 'Brochesdune' to Thetford
priory [Ref: Keats-Rohan DD p236, Keats-Rohan DD p987]