Gundulf was a Norman monk who went to England following the Norman Conquest. He was appointed Bishop of Rochester and Prior of the Cathedral Priory there. He built several castles, including Rochester, Colchester and the White Tower of the Tower of London, and the Priory and Cathedral Church of Rochester.
Gundulf of Rochester
White Tower, Tower of London
White Tower, Tower of London, showing apse of chapel
Chapel of St. John, White Tower, Tower of London
Rochester Castle stands on the east bank of the River Medway in Rochester, Kent, South East England. The 12th-century keep or stone tower, which is the castle's most prominent feature, is one of the best preserved in England or France.
Rochester Castle - main approach
Rochester Cathedral (centre) is visible adjoining the castle's ruined fortifications.
An early 13th-century drawing by Matthew Paris showing contemporary warfare, including the use of castles, crossbowmen and mounted knights
Chroniclers record that in 1215 the rebels garrisoned Rochester Castle with between 95 and 140 knights, supported by bowmen and sergeants, amongst others.