1. PIERS¹ DE LUTEGARESHALE was born about 1134 in Cherhill, Wiltshire, England, United Kingdom, and died between 1151 and 1254. He married in England, (YT-4) MAUD DE MANDEVILLE, daughter of (YT-3) Geoffrey and (ANK-3) Rohese (de VERE) MANDEVILLE, who was born about 1138 in Rycott, Oxford, England, and died in England. ^{[1, 20]}
Child:

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GEOFFREY2 FITZ PIERS, EARL OF ESSEX of Walden, Essex, England, b. about 1162; d. on 14 Oct. 1213; m. (1) before 25 Jan. 1184/5 (AHH-2) BEATRICE DE SAY, d. before 19 April 1197[17], daughter of (AHH-1) William SAY; m. (2) (M-20) AVELINE DE CLARE of Hereford, Herefordshire, England, b. about 1172, d. about 4 June 1225, daughter of (M-16) Roger, Earl of Hertford and (AJC-2) Countess Maud (Matilda) (de ST. HILARY).

2. GEOFFREY² FITZ PIERS, EARL OF ESSEX (Piers de LUTEGARESHALE¹) of Walden, son of (1) Piers¹ and (YT-4) Maud (de MANDEVILLE) LUTEGARESHALE, was born about 1162, and died on 14 Oct. 1213. He married (1st) before 25 Jan. 1184/5, (AHH-2) BEATRICE DE SAY^[17], daughter of (AHH-1) William SAY, who died before 19 April 1197^[17]. He married (2nd) (M-20) AVELINE DE CLARE of Hereford, daughter of (M-16) Roger, Earl of Hertford and (AJC-2) Countess Maud (Matilda) (de ST. HILARY), who was born about 1172, and died about 4 June 1225. ^{[3, 19, 25, 9, 16, 1]}
Child of: Geoffrey² FITZ PIERS, Earl of Essex and Beatrice de SAY:

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MAUD3 FITZ GEOFFREY, d. on 27 Aug. 1236; m. (EW-3) HENRY DE BOHUN, EARL OF HEREFORD, b. in 1176[2], d. on 1 June 1220[2], son of (EW-2) Baron Humphrey IV and (F-21) Margaret (of HUNTINGDON) (BRITTANY).

Children of: Geoffrey² FITZ PIERS, Earl of Essex and Aveline de CLARE:

+	4	i.	JOHN3 FITZ GEOFFREY, JUSTICIAR OF IRELAND, b. before 1209 in Shere, Farnbridge, Surrey, England; d. on 23 Nov. 1258; m. between 1230 and 1234 (EH-6) ISABEL LE BIGOD, daughter of (EH-4) Hugh II, 3rd Earl of Norfolk and (ZB-6) Maud (Matilda) (MARSHALL), Countess of Norfolk.
+	5	ii.	HAWISE FITZ GEOFFREY, d. before 1243; m. (AAS-6) SIR REYNOLD DE MOHUN II, b. about 1206[2], d. on 20 Jan. 1257/8[2], son of (AAS-5) Reynold I, Earl of Somerset and (GF-3) Alice (de BRIWERE).

3. MAUD³ FITZ GEOFFREY (Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), daughter of (2) Geoffrey², Earl of Essex and (AHH-2) Beatrice (de SAY), was born between 1166 and 1194, and died on 27 Aug. 1236^[2]. She married (EW-3) HENRY DE BOHUN, EARL OF HEREFORD, son of (EW-2) Baron Humphrey IV and (F-21) Margaret (of HUNTINGDON) (BRITTANY), who was born in 1176^[2], and died on 1 June 1220^[2]. ^{[21, 13, 12]}
Child: See (EW-3) Henry de BOHUN, Earl of Hereford
4. JOHN³ FITZ GEOFFREY, JUSTICIAR OF IRELAND (Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), son of (2) Geoffrey², Earl of Essex and (M-20) Aveline (de CLARE), was born before 1209 in Shere^[2], and died on 23 Nov. 1258. He married between 1230 and 1234, (EH-6) ISABEL LE BIGOD^[11], daughter of (EH-4) Hugh II, 3rd Earl of Norfolk and (ZB-6) Maud (Matilda) (MARSHALL), Countess of Norfolk. ^{[5, 26, 9, 24, 15, 11]}
"of Shere, Farnbridge, etc., Justiciar of Ireland, 1245-1256"
Children:

+	6	i.	MAUD4 FITZ JOHN, b. about 1250 in Shere, Surrey; d. on 16 April 1301 in Grey Friars, Worcestershire, England; m. before 1270 of Worcestershire (DO-10) WILLIAM DE BEAUCHAMP, 9TH EARL OF WARWICK of Elmley Castle, Worcestershire, b. about 1210, d. in Elmley, Worcestershire, son of (DO-9) Lord William and (ZM-7) Isabel (de MAUDUIT) (UM FRAVILLE).
+	7	ii.	JOAN FITZ JOHN, d. about 26 May 1303; m. (FI-2) THEOBALD BUTLER, b. about 1242[2], d. on 26 Sept. 1285[2], son of (FI-1) Theobald and (HF-2) Margery (de BURGH) BOTELER.
	8	iii.	AVELINA FITZ JOHN, d. about 20 May 1274.
+	9	iv.	ISABEL FITZ JOHN, b. about 1233 in Shere, Surrey; d. between 1254 and 1348; m. (ANQ-2) ROBERT DE VIPONT, LORD OF WESTMORLAND of Brougham Castle, Westmorland, England, b. about 1222, d. on 7 June 1264[17], son of (ANQ-1) John and (OH-14) Sibyl (de FERRERS) VIPONT.

5. HAWISE³ FITZ GEOFFREY (Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), daughter of (2) Geoffrey², Earl of Essex and (M-20) Aveline (de CLARE), was born between 1176 and 1214, and died between 1218 and 1243^[2]. She married (AAS-6) SIR REYNOLD DE MOHUN II, son of (AAS-5) Reynold I, Earl of Somerset and (GF-3) Alice (de BRIWERE), who was born about 1206^[2], and died on 20 Jan. 1257/8^[2]. ^{[4, 18, 25, 16]}
Child: See (AAS-6) Sir Reynold de MOHUN II

6. MAUD⁴ FITZ JOHN (John FITZ GEOFFREY³, Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), daughter of (4) John³, Justiciar of Ireland and (EH-6) Isabel (le BIGOD) (LACY), was born about 1250 in Shere, Surrey, died on 16 April 1301 in Grey Friars and was buried on 7 May 1301 in Grey Friars. She married of Worcestershire, before 1270, (DO-10) WILLIAM DE BEAUCHAMP, 9TH EARL OF WARWICK of Elmley Castle, son of (DO-9) Lord William and (ZM-7) Isabel (de MAUDUIT) (UM FRAVILLE), who was born about 1210, died in Elmley, and was buried on 22 June 1298 in Grey Friars. ^{[6, 22, 24, 10, 14, 11]}
Children: See (DO-10) William de BEAUCHAMP, 9th Earl of Warwick
7. JOAN⁴ FITZ JOHN (John FITZ GEOFFREY³, Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), daughter of (4) John³, Justiciar of Ireland and (EH-6) Isabel (le BIGOD) (LACY), was born between 1193 and 1239, and died between 26 March 1303 and 26 July 1303. She married (FI-2) THEOBALD BUTLER, son of (FI-1) Theobald and (HF-2) Margery (de BURGH) BOTELER, who was born about 1242^[2], and died on 26 Sept. 1285^[2]. ^{[7, 7]}
Child: See (FI-2) Theobald BUTLER
9. ISABEL⁴ FITZ JOHN (John FITZ GEOFFREY³, Geoffrey FITZ PIERS², Piers de LUTEGARESHALE¹), daughter of (4) John³, Justiciar of Ireland and (EH-6) Isabel (le BIGOD) (LACY), was born about 1233 in Shere, Surrey, and died between 1254 and 1348. She married of Woodham, Essex, (ANQ-2) ROBERT DE VIPONT, LORD OF WESTMORLAND of Brougham Castle, son of (ANQ-1) John and (OH-14) Sibyl (de FERRERS) VIPONT, who was born about 1222, and died on 7 June 1264^[17]. ^{[8, 23, 8, 23]}
Child: See (ANQ-2) Robert de VIPONT, Lord of Westmorland