Sir Gilbert de Clare 7th Earl of Clare, Earl of Hertford and Gloucester ^{1 2 3}

  Research Notes:

7th Earl of Clare, Earl of Hertford and Gloucester.

From Wikipedia - Gilbert de Clare, 5th Earl of Hertford :

Gilbert de Clare, 5th Earl of Hertford (1180 - October 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 William, 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 Isabel 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 Cranborne to Tewkesbury . His widow Isabel later married Richard Plantagenet, Earl of Cornwall & King of the Romans . His own arms were: Or, three chevronels gules.

Hertford had six children by his wife Isabel , née Marshal:[1]
Agnes de Clare (b. 1218)
Amice de Clare (1220-1287), who married the 6th Earl of Devon
Richard de Clare (1222-1262)
Isabel de Clare (1226-1264), who married the 5th Lord of Annandale
William de Clare (1228-1258)
Gilbert de Clare (b. 1229)

  Noted events in his life were:

• Magna Charta Surety, 1215.

• 5th Earl of Hertford, 1217-1230.

• Earl of Gloucester, 1217-1230.

Gilbert married Isabel Marshal, daughter of Sir William Marshal 1st Earl of Pembroke and Isabel de Clare, on 9 Oct 1217. (Isabel Marshal died on 17 Jan 1240 in Berkhamsted, Hertfordshire, England.)