The Battle of Tewkesbury took place on 4th of May 1471. It was one of the decisive battles of the English Wars of the Roses. The forces loyal to the House of Lancaster and Margaret of Anjou (spouse of King Henry VI and former queen) were completely defeated by those of the House of York under their monarch, King Edward IV. The Lancastrian heir to the throne, Edward, Prince of Wales, and many Lancastrian nobles were killed during the battle or executed after it.
Edward's father, the deposed King Henry VI was murdered in the Tower of London on the day after the battle.