The conquests made in France and Britain by these wild sea-kings, as they were called, have obscured the remembrance of other northern champions, who, long before the time of Comnenus, made excursions as far as Constantinople, and witnessed with their own eyes the wealth and the weakness of the Grecian empire itself. Numbers found their way thither through the pathless wastes of Russia; others navigated the Mediterranean in their sea-serpents, as they termed their piratical vessels. The Emperors, terrified at the appearance of these daring inhabitants of the frozen zone, had recourse to the usual policy of a rich and unwarlike people, bought with gold the service of their swords, and thus formed a corps of satellites more distinguished for valour than the famed Praetorian Bands of Rome, and, perhaps because fewer in number, unalterably loyal to their new princes. But, at a later period of the empire, it began to be more difficult for the Emperors to obtain recruits for their favourite and selected corps, the northern nations having now in a great measure laid aside the piratical and roving habits, which had driven their ancestors from the straits of Elsinore to those of Sestos and Abydos. The corps of the Varangians must therefore have died out, or have been filled up with less worthy materials, had not the conquests made by the Normans in the far distant west, sent to the aid of Comnenus a large body of the dispossessed inhabitants of the islands of Britain, and particularly of England, who furnished recruits to his chosen body-guard. These were, in fact, Anglo-Saxons; but, in the confused idea of geography received at the court of Constantinople, they were naturally enough called Anglo-Danes, as their native country was confounded with the Thule of the ancients, by which expression the archipelago of Zetland and Orkney is properly to be understood, though, according to the notions of the Greeks, it comprised either Denmark or Britain. The emigrants, however, spoke a language not very dissimilar to the original Varangians, and adopted the name more readily, that it seemed to remind them of their unhappy fate, the appellation being in one sense capable of being interpreted as exiles. Excepting one or two chief commanders, whom the Emperor judged worthy of such high trust, the Varangians were officered by men of their own nation; and with so many privileges, being joined by many of their countrymen from time to time, as the crusades, pilgrimages, or discontent at home, drove fresh supplies of the Anglo-Saxons, or Anglo-Danes, to the east, the Varangians subsisted in strength to the last days of the Greek empire, retaining their native language, along with the unblemished loyalty, and unabated martial spirit, which characterised their fathers.