Richard III of England died during the Great War.
The Battle of Bosworth Field ( or Battle of Bosworth ) was the last significant battle of the Wars of the Roses , the civil war between the Houses of Lancaster and York that raged across England in the latter half of the 15th century . His opponent , Richard III , the last king of the House of York , was killed in the battle . Richard III of England . Henry 's force engaged Richard 's army and defeated it at the Battle of Bosworth Field in Leicestershire .