Two anonymous 17th Century ballads describing the purported evil deeds of Richard III, the murder of the Princes in the Tower, and the Battle of Bosworth Field, which was fought #onthisday in 1485.
A good example of Tudor propaganda.
A song of the Life and Death of King Richard the Third (to the tune of Who list to lead a soldier's life)
and
The most cruel murther of Edward the fifth, and his brother Duke of York, in the Tower; by their Uncle Richard Duke of Gloucester (to the tune of Fortune my foe)
From Richard Johnson's ballad miscellany, The Golden Garland of Princely Delights, 1620