Troubles and rivalries between these new semi-autonomous princes and their bands of troops, along with the development of fiefdoms brought about a collapse of the Late Roman structures and of those of the first kingdom of the Franks. ###>Les troubles ou les rivalités entre ces nouveaux princes quasi-autonomes et leurs bandes amenèrent un effondrement des structures du Bas-Empire et du premier "regnum francorum", celui du monde mérovingien.