See also
1. Maud de St. Hilaire, daughter of James de St. Hilaire ( - ) and Aveline ( - ), married William d'Aubigny, 2nd Earl of Arundel.
William d'Aubigny, 2nd Earl of Arundel was the son of William d'Aubigny, 1st Earl of Arundel (c. 1109-1176) and Adeliza of Louvain (1103-1151). He and Maud de St. Hilaire had the following children:
| +2 |
2. William d'Aubigny, 3rd Earl of Arundel, son of William d'Aubigny, 2nd Earl of Arundel and Maud de St. Hilaire, was born circa 1167. He died circa 1221.
William was a favorite of King John. He took part in the Fifth Crusade, and died in Italy on his journey home.
William d'Aubigny, 3rd Earl of Arundel had the following children:
| +3 |
3. Isabel d'Aubigny, daughter of William d'Aubigny, 3rd Earl of Arundel, married John Fitzalan, Lord of Oswestry.
John Fitzalan, Lord of Oswestry was born in 1200. He died in 1240. He and Isabel d'Aubigny had the following children:
| 4 | John FitzAlan, Lord Oswestry, Clun, and Arundel (1223-1267). John was born in 1223. He died in 1267. |