Forgive my posting this a day late, but yesterday saw the anniversary of the Battle of Towton. On 29th March (Palm Sunday), 1461. Following a blood bath composed of the deaths of thousands, the Yorkists won a decisive victory over the Lancastrians, led by Queen Margaret (who naturally was not actually at the battle itself). The Queen, King and their young son, Edward, fled to Scotland.
For more information on the Battle of Towton, visit UK Battlefields Resource Centre