The downfall of Richard III culminated in the Battle of Bosworth Field The downfall of Richard III culminated in the Battle of Bosworth Field in 1485, where he faced Henry Tudor’s forces. Richard's reliance on deception and treachery, including alleged promises of support, ultimately backfired. His strategic mistakes, coupled with the defection of key allies, weakened his position. During the battle, Richard was isolated and overwhelmed, leading to his death. This defeat ended the Wars of the Ro