Extract from Liber Familicus:
"Robert (De Bingham) then Bishop of Salisbury, who was Lord
of the
manor of Sunning neer Okingham, did give to William
De La Beche(in 1231), out of his purpresture of Bear Wood,
that verye land my cosen
William Whitelocke now holdeth by
discent from his father, and he hathe the originall deed
of confirmation from the dean and chapter in his hand,
dated at that time, and an other deed of composition made
between the bishop and the said William De La Beche, dated
1247, for the improvement of the land so given."
Note on Henry Lee's Family Tree:
in Deeds 15 Henry III 1231