|SOME NOTES ON MEDIEVAL ENGLISH GENEALOGY|
Volume 11, page 358:
He [Sir Laurence de Saint Maur (d. 1296/7)] m. 1stly, Emma ---, who d. in or before Hilary term 1275/6; ...
Douglas Richardson, in August 2002, produced evidence that this Emma was the niece of Warin de Bassingbourn, who in 1265 or 1266 gave to Laurence in free marriage with Emma the manor of Cotes, Northamptonshire [citing L.C. Loyd and D.M. Stenton, Sir Christopher Hatton's Book of Seals, pp.82-83 (1950)].
[See also further discussion with Phil Moody.]