September 9, 1087 - William the Conqueror died in France from injuries he sustained in a fall from his horse. His son Robert became Duke of Normandy and his son William (Rufus) became King of England.
September 9, 1513 - The Scots were defeated by the English at the Battle of Flodden Field. James IV was killed along with all his nobles.
September 9, 1543 - Mary Stuart is crowned Queen of Scots at the age of nine months.