A notable example of a bombard is the large Mons Meg weapon, built around 1449 and used by King James II of Scotland. It was very powerful and used for bringing down castle walls. The origins of the Mons Meg are not fully known but according to Philip the Good, Duke of Burgundy, it was his idea. It was ordered around 1449 and had similar construction to a typical bombard. However, the Mons Meg was seldom used because of several factors. Mons Meg was capable of firing 180 kg (396 lb) shots and was one of the largest bombards in its time. It is now housed on public display at Edinburgh Castle.