We are currently having a debate in our 14th century group regarding cannons ribaldquins, organ guns.

One of our group would like to make an 8 barrel organ gun and thinks this is a correct weapon for the period we re-enact 1346-1396, however other members of our group disagree, does anyone know of any reliable sources that would contain information to either prove or disprove his theory

Maybe Smith and DeVries's The Artillery of the Dukes of Burgundy, 1363-1477? It's reviewed here:

http://www.deremilitari.org/REVIEWS/SmithDeVr...ryBurg.htm