When the king who has everything gets married, it's important to have just the right gift: In this case the perfect thing was two enormous cannons, equipped to fire enormous cannonballs weighing in at 330 pounds each and capable of launching those missiles the distance of two miles.
The gift arrived eight years late, but their enormous size and power must have made the wait worthwhile.
Named for the town in Belgium where she was forged around 1449, Mons Meg is the last surviving of the two enormous guns originally given to the king by his uncle, the Duke of Burgundy. With a barrel big enough for an adult to climb inside, she is currently considered to be the seventh largest cannon by caliber in history.
Although once used in battle against the English, Meg's enormous weight - 15,366 pounds - proved unwieldy and difficult to move, eventually restricting her mighty strength to marking momentous royal occasions rather than destroying enemy walls.
Meg also was fired in celebration of Mary Queen of Scots marriage in 1558. Her career came to an explosive end in 1681, firing her last shot in celebration of the birthday of the man who would later become King James VII of Scotland and II of England. The barrel's iron rings burst, and she has been silent ever since.
Although Meg saw some time standing silent vigil at the Tower of London, she was returned to Edinburgh in 1829. Her formidable girth can now be admired outside St. Margaret's Chapel.