Who did Richard the 3rd fight in the war of the roses?

Richard III fought primarily against the forces of Henry Tudor, who became Henry VII after defeating Richard at the Battle of Bosworth Field in 1485. The War of the Roses was a series of conflicts between the rival houses of York and Lancaster, with Richard representing the Yorkists and Henry representing the Lancastrians. This conflict marked the end of the Plantagenet dynasty and the beginning of Tudor rule in England.