Gilbert "Strongbow" DE CLARE, Earl of Pembroke
- Born: 21 Sep 1100, Tunbridge, Kent, England
- Died: 6 Jan 1148/9, Carmarthen, Carmarthenshire, Wales
- Buried: Tintern Abbey, Chapel Hill, Monmouthshire, Wales
Compiler's 25/30 x great-grandfather
Guillaume de Jumièges names "Richardum qui ei successit et Gislebertum et Walterium et unam filiam...Rohais” as the children of “Gislebertus ex filia comitis de Claromonte”. The Liber Vitæ of Thorney abbey lists "…Gilebt fili[us] Ricardi, Ricard fili[us] eius…Aaliz uxor Gilbti filii Ricardi, Comes Gilbt, Galteri…filii sui…". “Adeliz, uxor Gilberti filii Ricardi, et Gillebertus et Walterus et Baldewinus et Rohaisia pueri Gilberti” donated property to Thorney Monastery, by undated charter witnessed by “Gilberto filio Gilberti, Galterio, Hervæo, Baldwino fratribus eius et Rohaisia sorore eorum”. He inherited the estates of his paternal uncles Roger de Clare (after 1131, in the baronies of Bienfaite and Orbec, Normandy) and Walter de Clare (in 1138, as lord of Nether Gwent with the castle of Strigoil, later known as Chepstow).
He was created Earl of Pembroke in 1138 by King Stephen.
The Annales Cambriæ record the death in 1149 of "Gilbertus comes, qui Strangboga dictus est". 1
Gilbert married Isabel DE BEAUMONT, daughter of Robert DE BEAUMONT-LE-ROGER, Comte de Meulan, and Isabelle DE VERMANDOIS. (Isabel DE BEAUMONT was born between 1102 and 1107 and died after 1172 in Carmarthen, Carmarthenshire, Wales.)