The Wars of the Roses (1455-85) marked the struggle for the English throne between the houses of York and Lancaster. After Henry VI attempted to override a power grab by Richard, Duke of York, the fighting began with the 1455 Battle of St. Albans. The Battle of Towton in 1461 helped establish Richard’s son, Edward IV, as king, though Henry eventually returned to power. Edward reclaimed the throne with his victory at the Battle of Tewkesbury in 1471, but his death in 1483 begat more conflict. Henry Tudor finally stabilized the throne after defeating Richard III in 1485, his marriage to Elizabeth of York the following year uniting both houses.