During four years the invading tribes retained possession of the districts they had occupied, and were with difficulty prevented from overrunning the province; but in the fourth year a more formidable irruption took place. To the two nations of the Picts and the Scots were now added two other invading tribes—the Saxons, who had already made themselves known and dreaded by their piratical incursions on the coasts; and the Attacotti, who, we shall afterwards find, were a part of the inhabitants of the territory on the north of Hadrian’s wall, from which the Romans had been driven out on its seizure by the independent tribes.[91] They now joined the Picts in invading the province from the north, while the attack of the Saxons must have been directed against the south-eastern shore; and thus, assailing the provinces on three sides—the Saxons making incursions on the coast between the Wash and Portsmouth, afterwards termed the Saxon Shore, where they appear to have slain Nectarides, the Count of the maritime tract, the Picts and Attacotts on the north placing Fallofaudus, the Dux Britanniarum, whose duty it was to guard the northern frontier, in extreme peril, and the Scots penetrating through the mountains of Wales—the invading tribes penetrated so far into the interior, and the extent and character of their ravages so greatly threatened the very existence of the Roman government, that the Emperor became roused to the imminence of the danger, and after various officers had been sent without effect, the most eminent commander of the day, Theodosius the elder, was despatched to the assistance of the Britons. He found the province in the possession of the Picts, the Scots, and the Attacotts, who were ravaging it and plundering the inhabitants in different directions. The Picts, we are told, were then divided into two nations, the ‘Dicalidonæ’ and the ‘Vecturiones,’ a division evidently corresponding to the twofold division of the hostile tribes in the time of Severus, the ‘Caledonii’ and the ‘Mæatæ.’ The similarity of name and situation sufficiently identifies the first-mentioned people in each of the twofold divisions. The Mæatæ had been obliged to cede a part of their territory to the Romans, so that part of the nation had passed under their rule, and a part only remaining independent probably gave rise to the new name of ‘Vecturiones.’ The ‘Attacotti,’ we are told, were a warlike nation of the Britons, and the epithet applied to the ‘Scoti’ of ranging here and there shows that their attacks must have been made on different parts of the coast.[92] [Sidenote: A.D. 369. Province restored by Theodosius.]