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
Succession to the French throne association of the eldest son to the kingship continued for two more generations, with Philip II Augustus being the last king so crowned. Henry I became sole ruler on his father's death in 1031. The succession, however, was hotly contested by his younger brother Robert. Constance of Arles, Henry’s mother, preferred to place her younger son, Robert, on the throne. She allied herself with one of the more powerful counts of the time, Odo II, Count of Blois. This alliance was particularly worrisome for Henry I. Odo II of Blois was a very powerful lord and had warred against Henry’s