On this date in 1485, the last militarily successful invasion of  

England ( = the monarch changed as the result of direct 

military action undertaken as part of, or in response to, the 

invasion) came to an end as Henry Tudor, the Lancastrian

claimant to the Earldom of Richmond and the Crown itself, 

defeated Richard III at the Battle of Bosworth Field. 

Richard, who died in the battle, was the third and last king of

the House of York, and has stood accused of the murder of 

his nephews, the so-called "Princes in the Tower," for over 

500 years.

Henry Tudor, meanwhile, took the throne as Henry VII and

founded one of the most-celebrated (or, at least, most-

discussed) of all English royal dynasties: the Tudors.