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

at Andria, Sicily.
    5 Eleanor
    She was born in 1215. She married firstly William Marshal, 2nd Earl of Pembroke ( c. 1190–1231) (brother of Richard of Cornwall’s first wife Isabella) on 23 April, 1224. Notwithstanding a vow of perpetual chastity entered into during her widowhood, she married secondly Simon de Montfort, Earl of Leicester (1208–1265: killed at the Battle of Evesham), on 7 January or 19 February, 1238, at the King’s Chapel in the Palace of Westminster, and had issue:
    1  Henry (1238–1265: killed at the Battle of Evesham).
    2  Simon (1240–1271).
    3  Guy, Count of Nola (1243?–1288?); he married Margaret, daughter of Aldobrandino Aldobrandeschi, Count of Anguillara, and had issue.
    4  Amaury ( d. after 1301); he was a canon at York, but later became a knight.
    5  Richard ( d . after 1266).
    6  Eleanor (1252–1282); she married Llywelyn ap Gruffydd, Prince of Wales (killed 1282), and had issue.
    After the death of her husband, Eleanor became a nun at Montargis
    Abbey in France. She died on 13 April, 1275, at Montargis Abbey, and was buried there.
    King John also had the following illegitimate issue :
    By a woman called Suzanne, or by a sister of William de Warenne, Earl of Surrey (Surrey’s sister undoubtedly bore the King a child, but its identity is uncertain):
1
Richard FitzJohn of Dover, Baron of Chilham, Kent ( d 1242/53); he married Rohese ( d . by 1232), daughter of Fulbert of Dover, and had issue.
By Clementina, wife of Henry Pinel:
2
Joan ( d .1237); she married Llywelyn ap Iorwerth, Prince of Wales (1173–1240), and had issue.
By Hawise, perhaps a member of the de Tracy family:
3
Oliver ( d .1290); he was killed at the siege of Damietta, and was buried in Westminster Abbey.
By unknown mothers:
4
Osbert Gifford ( d . after 1216).
5
Geoffrey FitzRoy ( d .1205).
6
John FitzJohn or Courcy ( d .1242); a knight; perhaps a clerk at Lincoln.
7
Odo or Eudo FitzRoy ( d. 1242?).
8
Ivo (confused with Odo?).
9
Henry; he married a minor heiress.
10
Richard, Constable of Wallingford Castle.
11
Matilda (?), Abbess of Barking.
12
Isabella la Blanche (?).
    KING JOHN
    He died on 18/19 October, 1216, at Newark Castle, Lincs., and was buried in Worcester Cathedral.
    He was succeeded by his son Henry.

    Henry III
----
    F ATHER : King John ( see here ).
    M OTHER : Isabella of Angoulême (under King John see here ).
    S IBLINGS : (under King John , see here )
    HENRY III
    He was born on 1 October, 1207, at Winchester Castle, Hampshire. He succeeded his father as King of England and Duke of Normandy and Aquitaine on 28 October, 1216, being crowned on that day in Gloucester Cathedral with his mother’s circlet, the Crown Jewels having been lost in the River Wash. He was again crowned on 17 May, 1220, at Westminster Abbey. In December, 1259, he formally renounced the duchy of Normandy under the terms of the Treaty of Paris.
    Henry III married , on 14 January, 1236, at Canterbury Cathedral, Kent:
    Eleanor
    She was the daughter of Raymond Berenger V, Count of Provence, by Beatrice, daughter of Thomas I, Count of Savoy; her sister Sanchia later married Henry’s brother Richard. Eleanor was born between 1217 and 1226, perhaps in c. 1223, at Aix-en-Provence, France, and was crowned Queen Consort on 19/20 January, 1236, at Westminster Abbey. She became a nun on 7 July, 1284, at Amesbury Abbey, Wiltshire. She died on 24/25 June, 1291, at Amesbury Abbey, and was buried there.
    Issue of marriage:
    1   Edward I ( see here ).
    2   Margaret (under Alexander III, King of Scotland , see here ).
    3   Beatrice
    She was born on 25 June, 1242, at Bordeaux, Gascony. She married John de Montfort of Dreux, Earl of Richmond, afterwards John II, Duke of Brittany (1239–1305), on 22 January, 1260, at the Abbey of St Denis, Paris, and had issue:
    1  Arthur II, Duke of Brittany (1262–1312); he married firstly Beatrice (1260–1291), daughter of Guy VI, Viscount of Limoges, and had issue. He married secondly Yolande,