England
The End of Lancaster
Edward returned to London 21 May. King Henry VI died that same night.
It seems certain that, having removed all other obstacles, Edward decided to remove the final one as well. There were rumors in the City, of course, but they no longer mattered. Officially and by act of Parliament, Henry had never been king but only a usurper, so Edward's act at worst was ordinary murder, not treason.
Queen Margaret languished in the Tower for four years. She was finally ransomed by King Louis XI and returned to Anjou, the home of her birth. She had fought ferociously and for most of her life, never welcomed by England. In the end, she lost her husband, her only child, and her throne, ending as a dependent on a monarch who was notoriously cheap. When she finally died, she had not enough money even to pay her staff.
The Lancastrian cause was lost, and Henry Bolingbroke's legacy had ended in blood. The Wars of the Roses officially end here. It remained to be seen, however, whether the House of York could fare any better than the House of Lancaster.