Stamford bridge

In 1066, When Edward the confessor died without a son, three Vikings claimed the throne

Harold Godwinson , Tostig Godwinson, his brother, aided by Harold Harada and 

William the bastard aka William the conqueror ( ie the winners get to write the history books) 

The first stage was to clear the battlefield site at Stamford bridge near York Unfortunately the site has not been found, so the healing was done with the violet flame toroidal field covering a large area around the bridge