the region of Salland. It has also been proposed that the Salii might have been one of the peoples making up the large nation of the Chauci during the Roman Empire, most of whom apparently became Saxons. (The difference between Saxons and Franks in the earliest records which mention them is not clear.) In 358, the Salians came to some form of agreement with the Romans, which allowed them to keep settlements south of the delta in Toxandria, between the rivers Scheldt, Meuse, and Demer, roughly the area of the Campine, which contains the modern Dutch province of North Brabant, and adjacent parts of the two bordering Belgian Limburg and Antwerp Provinces. History The first mention of Franks in the area was about 286 AD, during the reign of emperor Probus (276–282), when Carausius was put in charge of defending the coasts of the Straits of Dover against Saxon and Frankish pirates. In the time of Probus there is also record of a large group who decided to hijack some Roman ships and return with them from the Black Sea – reaching the Atlantic after causing chaos through Greece, Sicily and Gibraltar. It has been proposed that the meaning of the term Frank changed over time and that these pirate Franks were actually Frisii, or some other coastal people. Centuries before the Vikings, the term "Saxon" came to refer to coastal Germanic groups specialised in raiding Roman territories by boat, whereas the Franks were strongly associated with the inland Rhine region. In the later period when the Salians first appear in the record, the term Frank was not associated with seafaring or coastal tribes. Their origins before they lived in Batavia are uncertain. Much later, it was only Zosimus, and not Ammianus Marcellinus whose work he possibly partly followed, who claimed that the Salians had once lived under the same name outside the Roman Empire, saying that they had been forced away by Saxons, and had come to share control of Batavia with the Romans. Whatever their origins, Zosimus says they were being pushed out of Batavia by a Saxon group known as the "Kouadoi", a Greek spelling of "Quadi" which some authors believe might be a misunderstanding for the Frankish Chamavi, who were mentioned by Ammianus. According to Zosimus, these Saxons had used boats on the Rhine to get around other Frankish tribes who effectively protected the Roman frontier,