Joyeuse

Joyeuse: is a Noble Phantasm of Karl der Große. It does not appear in history books and chronicles, a famed sword mentioned in various chanson de geste. It appeared in "Song of Roland" where it is a peerless sword. Its colors changes 30 times a day. In addition, it is said that the head of the holy lance Longinus is stored inside its pommel as an artifact. The name means "merry" or "joy" in French.