Historically, Richard III was the brother of
Edward IV, King of England. When Edward IV died,
Richard kidnapped the
assumed successor, Edward V, and eventually siezed
the crown himself in 1483. Shortly after assuming
the throne Richard announced the
deaths of Edward V and Edward's brother Richard.
King Richard was defeated and killed
at Bosworth Field in 1485 by the Earl of Richmond
who would become Henry VII, the first Tudor king.