Free Britain's Royal Families: The Complete Genealogy by Alison Weir Page A

of Peter de Courtenay, son of Louis VI, King of France, and she was born in c. 1187. She was crowned Queen Consort on 8 October, 1200, in Westminster Abbey. She succeeded her father as Countess of Angoulême in the summer of 1202, but was not formally recognised as such until November, 1206. After the death of John, she married secondly Hugh X de Lusignan, Count of La Marche ( d .1249), between 10 March and 22 May, 1220, and had issue:
1
Hugh XI, Count of La Marche and Angoulême (1221?–1250/60); he married Yolande ( d .1272), daughter of Peter Mauclerk, Count of Brittany, and had issue.
2
Aymer, Bishop of Winchester ( d .1260).
3
Guy, Lord of Cognac and Archiac ( d. 1264).
4
Henry, Count of La Marche ( d .1260); he married Yolande of Penthiévre, and had issue.
5
Geoffrey, Lord of Jarnac ( d . before 1263); he married Joan, Viscountess of Châtellérhault, and had issue.
6
William, Earl of Pembroke and Wexford (1225/30–1296); he married Joan ( d. 1307), daughter of Warin de Munchesni, Lord of Swanscombe, and had issue.
7
Alice ( d .1256); she married John de Warenne, 6th Earl of Surrey (1231?–1304), and had issue.
8
Margaret ( d .1283); she married firstly Raymond VII, Count ofToulouse (son of Joan, daughter of Henry II). They were divorced in 1245. She married secondly Aymer, Viscount of Thouars, and thirdly Geoffrey, Seigneur de Châteaubriand.
9
Matilda; she married Humphrey de Bohun, 2nd Earl of Hereford and 1st Earl of Essex (1200?–1275), and had issue.
10
Isabella ( d. 1299); she married firstly Geoffrey, Seigneur de Taillebourg, and secondly Amaury, Seigneur de Craon.
11
Agatha or Agnes; she married William de Chauvigny, Seigneur de Châteauroux.
    Isabella died on 31 May, 1246, at Fontevrault Abbey, France, where she was buried.
    Issue of marriage:
    1   Henry III ( see here ).
    2   Richard
    He was born on 5 January, 1209, at Winchester Castle, Hampshire. He was designated Count of Poitou before 14 August, 1225, and was first so styled on 21 August, 1227. He was created Earl of Cornwall on 30 May, 1227. He renounced the county of Poitou in c .December, 1243. He was elected King of Germany (Almayne) and King of the Romans on 13 January, 1257, and was crowned on 17 May, 1257, at Aachen Cathedral, Germany. He died on 2 April, 1272, at Berkhamstead Castle, Herts., and was buried in Hayles Abbey, Gloucs.
    Richard had the following illegitimate issue :
    By Jeanne de Valletort:
    1  Richard de Cornwall ( d. after 1280); he married and had issue.
    By unknown mothers:
    2  Walter de Cornwall.
    3  Isabella de Cornwall; she married Maurice de Berkeley, and had issue.
    Richard married firstly, on 13 or 30 March, 1231, at Fawley Church, Bucks.:
    Isabella
    She was the daughter of William Marshal, Earl of Pembroke, by Isabella, daughter of Richard FitzGilbert de Clare, 2nd Earl of Pembroke, and she was born on 9 October, 1200, at Pembroke Castle, Wales. She married firstly Gilbert de Clare, Earl of Hertford and Gloucester (1180?–1230) on 9 October, 1214 or 1217, atTewkesbury Abbey, Gloucs., and had issue:
    1  Amice (1220?–1284); she married firstly Baldwin de Redvers, 6th Earl of Devon ( d .1245), and secondly Robert of Guines.
    2  Richard, Earl of Hertford and Gloucester (1222?–1262); he married firstly Margaret (Megotta) ( d .1237), daughter of Hubert de Burgh, Earl of Kent. He married secondly Matilda ( d. by 1289), daughter of John de Lacy, Earl of Lincoln, and had issue.
    3  Agnes.
    4  Isabella (1226–1254); she married Robert le Brus, Lord of Annandale (1210–1295), and had issue.
    5  William (1228–1258).
    6  Gilbert ( b .1229); a priest (?).
    Isabella died on 15 or 17 January, 1240, at Berkhamstead Castle, Herts., of jaundice contracted whilst in childbed, and was buried in Beaulieu Abbey, Hampshire.
    Issue of marriage:

(i)
John
He was born on 31 January or 2 February, 1232, at Marlowe-on-Thames, Bucks., and died on 22/23 September, 1233, at Marlowe-on-Thames, Bucks.; he was buried in