Dover Castle


Dover Castle, located in the southern county of Kent, is one of the largest castles in England and one of the first to have concentric defensive walls. First built in 1066 CE by William the Conqueror to help prevent anyone repeating his own invasion, the castle was largely rebuilt in stone and a massive keep added by Henry II in the latter half of the 12th century CE. Despite its fine defences, the castle did not put off attackers and was famously, if ultimately unsuccessfully, besieged in 1216 CE by Prince Louis of France.

More about: Dover Castle


  • 1066
    William the Conqueror begins construction of Dover Castle in southern England.
  • c. 1170 - 1189
    Henry II extends Dover Castle in southern England, adding outer walls and a keep.
  • c. 1207 - c. 1214
    King John adds towers to the walls of Dover Castle in southern England.
  • 1216
    Dover Castle in southern England is unsuccessfully besieged by Prince Louis of France.
  • 1220 - 1227
    The Constable's Gate is built at Dover Castle, England.