Kevin Patrick Mostyn Family - Person Sheet
Kevin Patrick Mostyn Family - Person Sheet
NameGilbert FitzGilbert DE CLARE 1st Earl Of Pembroke, 26G Grandfather
MotherAlice DE CLERMONT (~1058-)
Web Notes notes for Gilbert FitzGilbert DE CLARE 1st Earl Of Pembroke
"The Matter of Wales: Epic Views of a Small Country" by Jan Morris, ISBN 0-19-504221-2, page 62:
The castle of Gilbert de Clare at Caerphilly (Caerffili) in Glamorgan, was one of the most powerful ever built in Europe, surrounded by unprecedented elaborate water-works.

He established himself in Wales.145

Strongbow's father was Gilbert fitz Gilbert de Clare, lord of Orbec and Bienfaite, lord of Striguil (Chepstow), and earl of Pembroke. Gilbert was a younger son of Gilbert fitz Richard de Clare, earl of Tonbridge and Clare and lord of Ceredigion, the Marcher lordship of Cardigan. in 1130, King Henry I granted Gilbert de Clare his lands of Orbec and Bienfaite in Normandy. With the death of King Henry I in 1135, Strongbow's father, Gilbert, supported Stephen as king, and was an active military commander for Stephen during the "anarchy". When Gilbert's uncle Walter de Clare died in 1138, King Stephen granted Gilbert the lordship of Netherwent, including the castles of Chepstow and Usk. Stephen also granted Gilbert the comital title and lands of the earldom of Pembroke the same year. Gilbert and Strongbow supported King Stephen against Matilda until c.1146. In 1146 King Stephen held Gilbert fitz Richard de Clare, earl of Hertford, as a hostage for the "good behavior" of his uncle Ranulf, earl of Chester. (This Gilbert was also the nephew of Gilbert, earl of Pembroke.)
When Ranulf changed sides and began to support the Empress Matilda, King Stephen forced Earl Gilbert of Hertford to surrender his castles and lands. This action immediately drove Gilbert to support Matilda, along with his uncle Earl Ranulf. Stephen, in anticipation of Earl Gilbert of  Pembroke following his nephew, took the earl's lands and castles. This enraged the earl of Pembroke so that he also changed sides, following his nephew to the side of Empress Matilda and taking his sixteen-year old son, Richard, with him.
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