Gilbert married (1st)
Alice de Lusignan, also known as Alice de Valence, daughter of
Hugh XI of Lusignan and of the family that succeeded the Marshal family to the title of the
Earl of Pembroke in the person of William de Valence, 1st Earl of Pembroke. They married in 1253 when Gilbert was ten years old. She was of high birth, being a niece of King
Henry (Hugh XI was the king's half-brother). Gilbert and Alice separated in 1267; allegedly, Alice's affections lay with her cousin, Prince
Edward. Previous to this, Gilbert and Alice had produced two daughters: • Isabel de Clare (10 March 1262 – 1333), after a marriage with
Guy de Beauchamp, 10th Earl of Warwick having been contemplated, or possibly having taken place and then annulled, married
Maurice de Berkeley, 2nd Baron Berkeley • Joan de Clare (1264 – after 1302), married (1st)
Duncan Macduff, 7th Earl of Fife; (2nd) Gervase Avenel. After his marriage to Alice de Lusignan was annulled in 1285, Gilbert married (2nd)
Joan of Acre, a daughter of King
Edward I of England and his first wife
Eleanor of Castile. King Edward sought to bind Clare, and his assets, more closely to the Crown by this means. By the provisions of the marriage contract, their joint possessions and Clare's extensive lands could only be inherited by a direct descendant, i.e. close to the Crown, and if the marriage proved childless, the lands would pass to any children Joan may have by further marriage. On 3 July 1290, the Earl gave a great banquet at
Clerkenwell to celebrate his marriage of 30 April 1290 with
Joan of Acre (1272 – 23 April 1307) after waiting for the Pope to sanction the marriage. Edward then gave large estates to Gilbert, including one in
Malvern. Disputed hunting rights on these led to several armed conflicts with
Humphrey de Bohun, 3rd Earl of Hereford, that Edward resolved. Gilbert made gifts to the Priory, and also had a "great conflict" about hunting rights and a ditch that he dug, with
Thomas de Cantilupe, Bishop of
Hereford, that was settled by costly litigation. Gilbert had a similar conflict with
Godfrey Giffard, Bishop and Administrator of Worcester Cathedral (and formerly
Chancellor of England). Godfrey, who had granted land to the Priory, had jurisdictional disputes about
Malvern Priory, resolved by
Robert Burnell, the then Chancellor. Thereafter, Gilbert and Joan are said to have taken the Cross and set out for the
Holy Land. In September, he signed the Barons' letter to the Pope, and on 2 November, surrendered to the King his claim to the advowson of the Bishopric of
Llandaff. Gilbert and Joan had one son, Gilbert, and three daughters: Eleanor, Margaret and Elizabeth. •
Gilbert, Earl of Hertford and Gloucester, (1291–1314) succeeded to his father's titles, married Maud de Burgh daughter of Richard de Burgh, Earl of Ulster. He was killed at the
Battle of Bannockburn. •
Eleanor de Clare (1292–1337) married (1st)
Hugh Despenser the Younger, a favourite of her uncle Edward II. Hugh was executed in 1326, and Eleanor married (2nd) William la Zouche Mortimer. •
Margaret de Clare (1293–1342) married (1st)
Piers Gaveston, a favourite of her uncle Edward II. Piers was executed in 1312, and Margaret later married (2nd)
Hugh de Audley, 1st Earl of Gloucester. •
Elizabeth de Clare (1295–1360) married (1st) in 1308 at Waltham Abbey
John de Burgh, (2nd) Theobald of Verdun in 1316, and (3rd)
Roger d'Amory in 1317. Each marriage was brief, each produced one child (a son by the 1st, daughters by the 2nd and 3rd), and each left Elizabeth a widow. When her third and last husband died in 1321/22, Elizabeth was at most 27 years old. == Death and burial ==