Gilbert De Clare, iV Earl of Gloucester, son of Richard De Clare and Amicia Fitzrobert, was born in 1182 in Hertford, Herfordshire, England and died on October 25, 1230 in Penrose, Brittany, France at the age of 48. He married Isabel Marshall, daughter of William Marshall and Isabel Fitzgilbert De Clare, on October 9, 1217 in England. She was born on October 9, 1200 in Pembroke Castle, Pembrokeshire, Wales and died on January 15, 1239 in Berkhamstead, Hertfordshire, England at the age of 38.

Isabel De Clare, daughter of Gilbert De Clare and Isabel Marshall, was born on November 2, 1226 and died in 1254 at the age of 27. She married Robert Bruce, son of Robert Bruce and Isabella Of Huntingdon, in May 1240. He was born in 1210 in Annandale, Dumfriesshire, Scot and died on March 31, 1295 in Priory, Lochmaben, Dumfriesshire, Scot at the age of 85.

Richard De Clare, Earl Of Gloucester, son of Gilbert De Clare and Isabel Marshall, was born on August 4, 1222 and died on July 15, 1262 at the age of 39. He married Maud De Lacy, Countess Of Gloucester on January 25, 1237 in Lincoln, Lincolnshire. She was born in 1223 in Abt. Lincoln, Lincolnshire, England.

Robert Bruce, son of Robert Bruce and Isabel De Clare, was born in July 1243 in Annandale, Dumfriesshire, Scot and died on April 4, 1304 in Palistine at the age of 60. He married 2 times. The first time he married Margaret … in 1271 in Turnberry Castle, Ayrhshire, Scot. She was born in 1235 and died in 1285 at the age of 50. The second time he married Margaret Of_carrick Margaret in 1260. She was born in 1234 and died in 1277 at the age of 43.

Gilbert De Clare, Earl Of Gloucester, son of Richard De Clare, Earl Of Gloucester and Maud De Lacy, Countess Of Gloucester, was born in 1243 in Christchurch, Hants and died in 1295 in Monmouth Castle, Monmouthshire at the age of 52. He married Joan Plantagenet, Countess Of Glochester, daughter of Edward I “Longshanks” Plantagenet and Eleanor Of Castile, on April 30, 1290 in Westminster, Abbey, London, England. She was born in 1272 in Acre, Palestine and died on April 23, 1307 in Clare, Suffolk, England at the age of 35.