[513] p. 392.
[514] p. 431.
[515] Nennius Interpretatus, ed. Mommsen (Chronica Minora, III, 179, in Mon. Germ. Hist.)
[516] "De norske oldsager synes at vidne om, at temmelig livlige handelsforbindelser i den ældre jernalder har fundet sted mellem Norge og de sydlige Nordsøkyster." Undset, Fra Norges ældre Jernalder in the Aarbøger for Nordisk Oldkyndighed og Historie, 1880, 89-184, esp. p. 173. See also Chadwick, Origin, 93. I am indebted to Chadwick's note for this reference to Undset.
[517] Ravennatis anonymi cosmographia, ed. Pinder et Parthey, Berolini, 1860, pp. 27, 28 (§ I, 11).
[518] The modern Wijk bij Duurstede, not far from Utrecht, on the Lower Rhine.
[519] An account of the numerous coins found among the ruins of the old town will be found in the Forschungen zur deutschen Geschichte, IV (1864), pp. 301-303. They testify to its commercial importance.
[520] So Adam of Bremen, following Alcuin. Concerning "Heiligland" Adam says: "Hanc in vita Sancti Willebrordi Fosetisland appellari discimus, quae sita est in confinio Danorum et Fresonum." Adam of Bremen in Pertz, Scriptores, VII, 1846, p. 369.
[521] Alcuin's Life of Willibrord in Migne (1851)—Alcuini Opera, vol. II, 699-702.