The final battle of the Wars of the Roses was not the Battle of Bosworth Field.
Henry VII of England . Henry won the throne when his forces defeated King Richard III at the Battle of Bosworth Field , the culmination of the Wars of the Roses . House of Plantagenet . The rivalry between the House of Plantagenet 's two cadet branches of York and Lancaster brought about the Wars of the Roses , a decades-long fight for the English succession , culminating in the Battle of Bosworth Field in 1485 , when the reign of the Plantagenets and the English Middle Ages both met their end with the death of King Richard III . Henry VII , a Lancastrian , became king of England ; two years later , he married Elizabeth of York , thus ending the Wars of the Roses , and giving rise to the Tudor dynasty . Wars of the Roses . The final victory went to a claimant of the Lancastrian party , Henry Tudor , Earl of Richmond , who defeated the last Yorkist king , Richard III , at the Battle of Bosworth Field . After assuming the throne as Henry VII , he married Elizabeth of York , the eldest daughter and heir of Edward IV , thereby uniting the two claims .