Section GC: Descendants of Count Gauthier I de Brienne

David Thaler
18043 NE 132nd St, Redmond WA 98052
Send questions and corrections to: dthaler@microsoft.com

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Generation One

1. COUNT GAUTHIER I1 DE BRIENNE was born between 979 and 1075, and died in 1089[5]. He married EUSTACHE DE BAR-SUR-SEINE. [6]
Child:
+2i.COUNT ÉRARD I2 DE BRIENNE, d. in 1114; m. AGNES DE BAUDEMONT.

Generation Two

2. COUNT ÉRARD I2 DE BRIENNE (Gauthier I1), son of (1) Count Gauthier I1 and Eustache (de BAR-SUR-SEINE), was born between 1004 and 1090, and died in 1114[5]. He married AGNES DE BAUDEMONT. [6]
Child:
+3i.COUNT GAUTHIER II3 DE BRIENNE, d. in 1161; m. ADELE.

Generation Three

3. COUNT GAUTHIER II3 DE BRIENNE (Érard I2, Gauthier I1), son of (2) Count Érard I2 and Agnes (de BAUDEMONT), was born between 1051 and 1115, and died in 1161[5]. He married ADELE. [6]
Child:
+4i.COUNT ÉRARD II4 OF BRIENNE, d. on 8 Feb. 1191 in Acre, Israel; m. in 1166 (AAX-5) AGNES DE MONTFAUCON, daughter of (AAX-4) Count Richard II and Agnes (de MONTBELIARD).

Generation Four

4. COUNT ÉRARD II4 OF BRIENNE (Gauthier II3, Érard I2, Gauthier I1), son of (3) Count Gauthier II3 and Adele, was born between 1125 and 1152, and died on 8 Feb. 1191 in Acre[1]. He married in 1166, (AAX-5) AGNES DE MONTFAUCON[1], daughter of (AAX-4) Count Richard II and Agnes (de MONTBELIARD). [6, 2, 7]
Child:
+5i.JEAN5 DE BRIENNE, KING OF JERUSALEM of Acre, Palestine, Israel, b. about 1195; d. on 21 March 1237 in Constantinople, Turkey; m. in 1222 (UQ-29) BERENGARIA OF LEON, b. in Leon, Spain in 1204, daughter of (UQ-25) King Alphonso IX and (UQ-26) Berengaria (of CASTILE).

Generation Five

5. JEAN5 DE BRIENNE, KING OF JERUSALEM (Érard II4, Gauthier II3, Érard I2, Gauthier I1) of Acre, son of (4) Count Érard II4 and (AAX-5) Agnes (de MONTFAUCON), was born about 1195, and died on 21 March 1237 in Constantinople. He married in 1222, (UQ-29) BERENGARIA OF LEON, daughter of (UQ-25) King Alphonso IX and (UQ-26) Berengaria (of CASTILE), who was born in 1204 in Leon. [7, 1, 9]
Children:
+6i.JEAN6 DE BRIENNE, GRAND BUTLER OF FRANCE, b. about 1217 in Acre; d. in 1296; m. in 1251 JEANNE DE CHÂTEAUDUN, b. about 1227.
7ii.LOUIS DE BRIENNE.

Generation Six

6. JEAN6 DE BRIENNE, GRAND BUTLER OF FRANCE (Jean5, Érard II4, Gauthier II3, Érard I2, Gauthier I1), son of (5) Jean5, King of Jerusalem and (UQ-29) Berengaria (of LEON), was born about 1217 in Acre, and died in 1296[8]. He married in 1251, JEANNE DE CHÂTEAUDUN[8], who was born about 1227. [3, 8, 9]
Child:
+8i.BLANCHE7 DE BRIENNE, LADY OF LOUPELAND, b. about 1245 in Courtrain, Mynn, France; d. in 1302; m. in 1269 (OK-6) SIR WILLIAM DE FIENNES, b. in Wendover, Buckinghamshire, England, United Kingdom about 1245, d. in Courtrai, Belgium on 11 July 1302[8, 8], son of (OK-4) Enguerrand Ingelram and (JY-2) Isabel (CONDE) FIENNES.

Generation Seven

8. BLANCHE7 DE BRIENNE, LADY OF LOUPELAND (Jean6, Jean5, Érard II4, Gauthier II3, Érard I2, Gauthier I1), daughter of (6) Jean6, Grand Butler of France and Jeanne (de CHÂTEAUDUN), was born about 1245 in Courtrain, died in 1302 and was buried in 1302. She married in 1269, (OK-6) SIR WILLIAM DE FIENNES, son of (OK-4) Enguerrand Ingelram and (JY-2) Isabel (CONDE) FIENNES, who was born about 1245 in Wendover, and died on 11 July 1302 in Courtrai[8, 8]. [4, 8, 9]
Children: See (OK-6) Sir William de FIENNES


1. Frederick Lewis Weis, "Ancestral Roots of Certain American Colonists", 7th ed. (Baltimore: Genealogical Publishing Co., 1999).
2. Ibid., (114-28+).
3. Ibid., (120-30).
4. Ibid., (120-31).
5. W. H. Turton, "Plantagenet Ancestry" (Baltimore: Genealogical Publishing Co., 1928).
6. Ibid., 206.
7. Douglas Richardson, "Plantagenet Ancestry" (Baltimore: Genealogical Publishing Co., 2004), 154.
8. Ibid., 155.
9. Gary Boyd Roberts, "Royal Descents of 500 Immigrants" (Baltimore: Genealogical Publishing Co., 2002), 303.