History of Bristol Welsh estate and Robert of Caen became the first Earl of Gloucester, c. 1122. He is believed to have been responsible for completing Bristol castle. In 1135 Henry I died and the Earl of Gloucester rallied to the support of his sister Matilda against Stephen of Blois who had seized the throne on Henry's death. Stephen attempted to lay siege to Robert at Bristol in 1138 but gave up the attempt as the castle appeared impregnable. When Stephen was captured in 1141 he was imprisoned in the castle, but when Robert was captured by Stephen's forces, Matilda was forced to
Henry, Prince of Capua Henry, Prince of Capua Henry ("Arricus" or "Arrico") (1160–1172) was the youngest and second surviving son of William I of Sicily by Margaret of Navarre. By his father's will he succeeded to the title Prince of Capua, an appanage to the throne, while his brother William succeeded to the throne. Henry's coronation as prince was postponed from the death of his father (1166). He was present with William at Taranto, where the young king awaited his Greek bride. They planned to return via Capua and there invest Henry with his principality, but not far off from the town, Henry came