Why did Richard III have the war of roses?

Richard III was a key figure in the Wars of the Roses, a series of dynastic conflicts in England during the 15th century. The war was primarily fought between the rival houses of Lancaster and York over the English throne. Richard, a member of the Yorkist faction, sought to solidify his power after the death of his brother, King Edward IV, and claimed the throne for himself by asserting his right as a legitimate heir. His rule and controversial actions, including the alleged murder of his nephews, ultimately fueled further conflict and led to his downfall at the Battle of Bosworth in 1485.