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
date:
third son [Ref: Keats-Rohan DD p431],
parents:
[Ref: Keats-Rohan DD p431]
Research Notes:
also occurs as Alan [Ref: Keats-Rohan DD p431]
1166: held eleven and a half fees of his kinsman Roger de Clare [Ref:
Keats-Rohan DD p431]