With the decline of the Roman Empire, many of its provinces came under the rule of Germanic kings: Hispania to the Visigoths, Italia to the Ostrogoths, Gallia to the Franks, Britannia to the Anglo-Saxons, and Africa to the Vandals. These nations had by then been in contact with Rome for a century or more and had adopted many Roman customs. They had also been Christianised and pre-Christianization practice was slowly being replaced.