Gilbert de Clare, 5th Earl of Hertford

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Gilbert de Clare, 5th Earl of Hertford
1st Earl of Gloucester
Born 1180
Hertford, Hertfordshire, England
Died 25 October 1230
Penrose, Brittany, France

Gilbert de Clare, 5th Earl of Hertford (1180October 25, 1230) was the son of Richard de Clare, 4th Earl of Hertford, from whom he inherited the Clare estates, from his mother, Amice Fitz Robert, the estates of Gloucester and the honour of St. Hilary, and from Rohese, an ancestor, the moiety of the Giffard estates. In June 1202, he was entrusted with the lands of Harfleur and Montrevillers.
In 1215 Gilbert and his father were two of the barons made Magna Carta sureties and championed Louis "le Dauphin" of France in the First Barons' War, fighting at Lincoln under the baronial banner. He was taken prisoner in 1217 by William Marshal, whose daughter Isabella he later married. In 1223 he accompanied his brother-in-law, Earl Marshal in an expedition into Wales. In 1225 he was present at the confirmation of the Magna Carta by Henry III. In 1228 he led an army against the Welsh, capturing Morgan Gam, who was released the next year. He then joined in an expedition to Brittany, but died on his way back to Penrose in that duchy. His body was conveyed home by way of Plymouth and Cranbourgh to Tewkesbury. His widow Isabel later married Richard Plantagenet, Earl of Cornwall & King of the Romans. His own arms were: Or, three chevronels gules.


Name Birth Death Notes
By Isabella Marshal, married 9 October 1217, Tewkesbury Abbey, Gloucester, England, b. 1200, Tewkesbury, Gloucestershire, daughter of Sir William Marshal, Earl of Pembroke, Mareschal of England, and Isabel de Clare.
Amicia de Clare 27 May 1220, Usk, Monmouthshire, Wales 30 November 1287 m. Baldwin de Redvers, 6th Earl of Devon
Richard de Clare 4 August 1222 15 July 1262, near Canterbury 2nd Earl of Gloucester and Clare
Isabel de Clare 8 November 1226, Gloucestershire 10 July 1264 m. Sir Robert Bruce, 5th Lord of Annandale, 12 May 1240.
Peerage of England
Preceded by
Richard de Clare
Earl of Hertford
1217–1230
Succeeded by
Richard de Clare
Preceded by
New Creation
Earl of Gloucester
1208–1230