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
Bagrat I of Abkhazia Bagrat I of Abkhazia Bagrat I () was the King of Abkhazia between 882 and 894. He was the second son of Demetrius II of the Anchabadze dynasty. After the usurper John Shavliani seized the throne Bagrat fled to Constantinople and lived there for some time until he returned to Abkhazia in 887/888. He deposed and put to death Adarnase Shavliani (the son of John Shavliani) and reclaimed the throne. Then he married to the daughter of Guaram Bagrationi, the ruler of Tao-Klarjeti and had a son Constantine who succeeded him to the throne of Abkhazia. Bagrat supported his brother-in-law,