Mons Meg is an enormous cannon from the fifteenth century. Its impressive military technology is proof of the strength of the fortress during the reign of James II. It was used during the war against the English. Mons Meg was built in 1449 on the orders of Philip the Good, Duke of Burgundy and sent by him as a gift to James II, King of Scots, in 1454. The bombard was employed in sieges until the middle of the 16th century, after which it was only fired on ceremonial occasions. On one such occasion in 1680 the barrel burst, rendering Mons Meg unusable. The gun remained in Edinburgh Castle until 1754 when, along with other unused weapons in Scotland, it was taken to the Tower of London. Sir Walter Scott and others campaigned for its return, which was effected in 1829. Mons Meg has since been restored, and is now on display within the castle.
