1) The Mayor of Rome for the invasion by Roman forces of these islands and their subsequent colonisation for some 400 years.
2) The King of Denmark (and possibly the King of Norway also) for the Viking raids on these coasts during the sixth, seventh and eighth centuries.
3) The regional government of Normandy for the invasion in 1066.
4) The King of Spain for his country's attempted invasion of Great Britain in 1584.
Saffron Walden, Essex