"Rochester" . "Rochester Castle" . . . . "Boley Hill, Rochester" . . "castle" . . . . "castle at Rochester" . . . . . . . . . . . . . . "Keep built around 1127" . . . . . . . . . "Castle" . . . . . "Siege of Rochester castle" . . . . . . . "Rochester Castle" . . . . . . "Construction started between" . . "34.4424" . "castle of Rochester" . . .