Largest wooden trebuchet

The largest wood-framed trebuchet was Loup-de-Guerre ("War Wolf"), built on the orders of King Edward I of England during his 1304 campaign in Scotland. This siege engine is estimated to have measured as much as 90 m (295 ft) in height with its arm fully extended, and could launch a 120 kg projectile a distance of around 200 metres.

Physical descriptions of War Wolf come from later histories of Edward's campaign in Scotland, but the scale of the project is confirmed by surviving written records, which list payments to a workforce of 50 skilled carpenters who spent more than two months assembling the trebuchet. It was designed by James of Saint George, a military engineer who also designed Edward I's castles in Wales.

War Wolf was built to break the siege of Stirling Castle, the last remaining stronghold of Scottish resistance to English rule, whose small garrison had held out for four months between early April and late July 1304.