SIR OSBERN, or OSBERT, GIFFARD, of Winterborne Houghton, and Langham in Gillingham, Dorset, Egg Buckland and Hooe, Devon, Standlake and Deddington Oxon, Pitchcombe, co. Gloucester, Forscote and Elm, Somerset, and Astwell, Northants, son and heir of Sir Osbern GIFFARD, of Winterborne Houghton, &c. (who died shortly before 17 October 1237), by Isabel, daughter and heir of Sir Alan DE BOCLAND, of Egg Buckland and Hooe (a): which last named Osbern was a younger son of Sir Elis GIFFARD, of Brimpsfield, co. Gloucester, by Maud, daughter of Sir Morice Fitz ROBERT FITZ HARDINGE, of Berkeley, in that county. [Complete Peerage V:649-53, (transcribed by Dave Utzinger)]
(a) Isabel was daughter and heir of Alan de Bocland, of Egg Buckland and Hooe, by Alice, younger daughter and coheir (the other was Beatrice, wife of Robert Mauduit) of Ralph Murdac, by Eve de Gray, Lady of Standlake and Dornford, Oxon. Alice was afterwards wife of Ralph Harenge.