Sir Eustace II de Fiennes [a], Baron Fiennes, b abt 1126, d abt 1183/84. He md Margaret of Guines abt 1148, daughter of Arnoul/Arnulf I of Guines, Count of Gand, and Maud de St.
Child of Eustace II de Fiennes and Margaret of Guines was:

Enguerrand/Ingelram I de Fiennes [b] b abt 1152, d 1189, Acre, Palestine. He md Sibyl de Boulogne (de Tingry) abt 1172, daughter of Faramus de Boulogne (de Tingry) and Matilda.
Child of Enguerrand de Fiennes and Sibyl de Boulogne was:

William I de Fiennes, Lord of Fiennes, b abt 1175, d 1241. He md [1] Isabel, [2] Agnes de Dammartin abt 1196, daughter of Alberic II de Dammartin, Count of Dammartin, and Maud/Matilda of Clermont.
Children of William de Fiennes and Agnes de Dammartin were:

  • Enguerrand/Ingelram II de Fiennes, Seigneur de Fiennes, b abt 1200.
  • Mahaut de Fiennes b abt 1206. She md Baldwin III of Guines, Count of Guines, abt 1220, son of Arnoul/Arnulf II of Guines, Count of Guines, and Beatrice de Bourberg.
Enguerrand/Ingelram II de Fiennes, Seigneur de Fiennes, b abt 1200, France, d 1270. He md Daughter de Conde abt 1240, daughter of Jacques, Seigneur of Conde, Bailleul, and
Children of Enguerrand de Fiennes and Daughter de Conde were:
  • Sir William II de Fiennes b abt 1245.
  • Maud de Fiennes b abt 1258, Wendover, Buckinghamshire, England, d 6 Dec 1298, Essex, England. She md Sir Humphrey VII de Bohun, Earl of Hereford, 1275, son of Sir Humphrey VI de Bohun and Eleanor de Braose.
Sir William II de Fiennes b abt 1245, d 1302. He md Blanche de Brienne abt 1265, daughter of Jean de Brienne, Grand Butler of France, and Jeanne de Chateaudun.
Child of William II de Fiennes and Blanche de Brienne was:

Margaret de Fiennes b abt 1272, Wigmore, Herefordshire, England, d abt Feb 1333/34. She md Sir Edmund de Mortimer, 7th Baron Mortimer, abt 1285, son of Sir Roger de Mortimer, 6th Baron Mortimer, and Maud de Braose.

a. He was son or grandson of Eustace I and Adele de Selnesse, some sources placing an intervening generation between the two Eustaces, that of Conon, who was living in 1112.

b. Second son of Eustace II, but eldest son to have issue. His wife Sibyl de Tingry, heiress to her father, Faramus (a prominent supporter of King Stephen), brought to her marriage lands in six English counties, as well as in Boulogne. Enguerrand was slain at Acre in 1189.

CP Vol XI[479]; AR: Line 94A[31], Line 97[30], Line 120[31-32], Line 152[27, 28-29], Line 152A[28-29], Line 158A[26-27].

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