Full references for this lineage are available in My Lineage from the Roots Up, vol. 1.

William the Marshal effigy, Temple Church, London. Michael Wal, 2008. CC BY-SA 3.0

William (the) Marshal was born about 1146 to John Fitz Gilbert and his second wife Sybil. He served as Marshal, and then Regent, of England under four monarchs and was the 1st Earl Marshal of Pembroke. At 5 years old, he was held hostage by King Stephen during a siege at Newbury. In the early 1160s, he trained in Normandy as a squire to his cousin William de Tancarville. In 1167, he was injured while defending Henry II’s wife Eleanor during an attack near Lusignan Castle. In 1170, he was a guardian of Prince Henry, son of Henry II. He also fought in the service of Henry II in France until the king’s death in 1189.

After the succession of Richard the LionHeart, William married Isabel de Clare, Countess of Pembroke, daughter of Richard Strongbow (FitzGilbert/de Clare) and Eva MacMurrough.

William died May 14, 1219, at Caversham, Berkshire, England. His effigy is at Temple Church, London. Isabel died in 1220 and was buried at Tintern, Monmouthshire.

William and Isabel had several children of record:

1. Isabel born about 1200. On her 17th birthday, she married (1st) Gilbert de Clare, who was a captive of her father in the Second Baron’s War. She married (2nd) Richard (Plantagenet), Earl of Cornwall, second son of King John. She died January 17, 1239/40, from complications of childbirth. She was buried at Beaulieu, though her heart was sent to Tewksbury in a silver-gilded “cuppa” so she could be with her first husband as she is said to have requested on her deathbed. It is interred at the Great Alter.

2. Eve who married William de Braose (d. 1230, hanged by Llywelyn) of Brecon before 1219. She died in 1246.

3. William, 2nd Earl of Pembroke, who was constable of the castles of Cardigan and Carmarthen 1223-1226. He was born in Normandy, probably about 1190. He is said to have been a hostage of King John due to his father’s actions at court from 1203 until 1212. He married (1st) Alice de Bethune (d. possibly 1215) in 1214. He married (2nd) Eleanor (b. 1215), sister of Henry III and daughter of King John, in 1224 (she was only 9 years old). He died April 1231 and was buried at Temple Church, London.

4. Richard, 3rd Earl of Pembroke, led the baronage against Henry III, with a tentative truce with the Welsh. He married Gervase de Dinan before 1224. He was attacked by his fellow barons (under order of des Roches), dying from his injuries and their rough care in April 1234 in Ireland, and was buried at Kilkenny Abbey.

5. Gilbert, 4th Earl of Pembroke, who was granted the castles at Cardigan and Carmarthen by Henry III in December 1234. He had taken minor orders in 1225 and had planned to have an ecclesiastical career before having to return to England from Wales after his brother’s death. He married (1st) Margaret de Lanvallei in 1230 and (2nd) Marjorie, daughter of William I of Scotland in 1235. He died at an illegal tournament in June 1241 when he was dragged by his horse. He was buried at Temple Church, London.

6. Walter, 5th Earl of Pembroke, who was sent by his brother to fortify Cardigan Castle in 1240. He married Margaret de Quenci (d. 1266), widow of John de Lacy, in 1242. He died November 24, 1245, and was buried at Tintern, Monmouthshire.

7. Anselm who died in December 1245 before he could be bestowed with the earldom. He had married Maud de Bohn but had no children. He was buried at Tintern, Monmouthshire.

8. Maud (Matilda) born before 1193. She married (1st) Hugh Bigod, Earl of Norfolk (d. 1225) in 1206. She married (2nd) William de Warenne, Earl of Surrey (d. 1240). Her son Roger Bigod inherited the Marshal Earldom when she died in 1245.

9. Sibilla who married William de Ferrers, Earl of Derby (d. 1254) before 1219. She died after 1238.

10. Joan who married Warin de Munchenshi (d. 1255) of Swanscombe after 1220. She died about 1234.

GenTales

Children of William Marshal (d. 1219) and the…