How did Henry VII win the War of Roses?

Henry VII won the Wars of the Roses by killing Richard III, King of England and Leader of the House of Lancaster, at the Battle of Bosworth Field in 1485, where he took the English crown. read more

As another answer says, the War of the Roses was not a single campaign; but a series of dynastic skirmishes and some real battles over a 30-year period, starting with the minor engagement at St Albans in May 1455. read more

The War of the Roses was not one war, but a series of battles between the Yorkist and Lancastrian factions. Henry VII won the last of these battles, the Battle of Bosworth, in 1485. read more