Greetings, The pedigree, related to Ernulph II de Mandeville, as I understand it, is as follows: Geoffrey II de Mandeville, 1st Earl of Essex b. before 1091 (source: ‘The Official Baronage of England showing the succession, dignities, and offices of every peer from 1066 to 1885’, (1886), Vol. I – Dukes – Viscounts, by James E. Doyle, pp. 682) or 1100/05. Geoffrey had at least 1, and perhaps 2, siblings: (1) Beatrix (b. [1105]-[Rickling, Essex] and d. April 19 [1197 or before], bur Walden Abbey; and, perhaps, (2) Alice (source: Foundation for Medieval Genealogy, Medieval Lands – A prosopography of medieval European noble and royal families, England, Earls Created 1138-1143 (http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL1.htm#_Toc434831801)) m. Rose de Vere (c. 1110 – 1170 or after) d. September 26, 1144 – Mildenhall, Suffolk (source: ‘Oxford Dictionary of National Biography’, (2004), Vol. 36 (Macquarie-Martin), pp. 405) or September 14 or 16, 1144 – Mildenhall, Suffolk and bur 1163 in New Temple Church, London (source: Foundation for Medieval Genealogy - (http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL1.htm#_Toc434831801)) his eldest son (either illegitimate or from an earlier marriage – not, apparently, the son of Rose de Vere), Ernulph I de Mandeville b. [approx. 1110-20/1120-25]. Ernulph had at least 5 siblings: (1) Geoffrey III (d.s.p. Chester on October 21, 1166, bur Walden Abbey); (2) William (d.s.p. [Rouen/Gisors/Le Vaudreuil] Normandy on November 14, 1189, bur Abbey of Mortemer); (3) Beatrice; (4) Robert (d.s.p. before November 14, 1189); and (5) Matilda (m. (i) Peter of Ludgershall and (ii) Hugh II of Buckland (d. 1175)). (source: ‘Domesday Descendants – A Prosopography of Persons Occurring in English Documents 1066-1166’, Vol. II. Pipe Rolls to Cartae Baronum, (2002), by K.S.B. Keats-Rohan, p. 566; Foundation for Medieval Genealogy - (http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL1.htm#_Toc434831801)) m. Alice d’Oilly d. c. 1178 (source: Foundation for Medieval Genealogy - (http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL1.htm#_Toc434831801)) his son, Ernulph II de Mandeville b. [approx. 1140-50]. Ernulph had at least 3 siblings: (1) Geoffrey of Highworth (d. after 1190/94 and had a son Geoffrey); (2) Ralph of Kingham; and (3) Matilda (m. Adam de Port) + other daughters. (source: ‘Domesday Descendants’, Vol. II, p. 566). Ernulph was, as I understand it, the 2nd or 3rd son of Ernulph I. m. Ernulph married NN who died before c. 1185-97. He married secondly (or after NN) Maud de Luvetot c. 1185-97. d. c. 1216 his daughter, NN (Christiana) de Mandeville b. [approx. 1180-90]. NN had at least 1 sibling: (1) Ernulph III (d. 1251-54). m. Robert II de Mounteney of Mountnessing, Essex (c. 1175/85 - before Michaelmas 1224) d. in or post 1234 (source: ‘Calendar of the Close Rolls of the Reign of Henry III., preserved in the PRO’, (1908), Henry III – 1234-1237, p. 158) I cannot, however, identify any primary evidence to confirm: 1. that Ernulph II was the son of Ernulph I; 2. the identity of Ernulph II’s first wife; or 3. that NN de Mandeville was the daughter of Ernulph II. There is, however, an abundant amount of corroborative evidence for #1 and 3. Assistance with this would be much appreciated. Cheers, Pete