Directory of Royal Genealogical Data
<http://www.dcs.hull.ac.uk/public/genealogy/royal/> @ d. 1 Apr 1148
(Ref: d. 1 Apr 1148) The author/originator was Tompsett, Brian. This citation is considered to be direct and primary evidence used, or by dominance of the evidence.
Directory of Royal Genealogical Data.