The Breisgau, originally a pagus or gau of the Frankish empire, was ruled during the middle ages by hereditary counts.
Gau, Nubische Denl i mdler (Stuttgart, 1821).
In feudal subordination to him a royal count, who was also Vogt (advocatus) of the cathedral church of St Martin, had his seat at Utrecht as the chief town of the Gouw (Gau, pagus) of Ifterlake.
His architectural education was carried out successively in Hamburg, where later, upon his return from Greece, he built the Donner Museum, in Berlin, in Dresden, in Paris under Gau and in Munich under Gartner; afterwards he visited Italy and Greece.
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About 330 the city was taken by the Franks but was not permanently occupied by them till the 5th century, becoming in 475 the residence of the Frankish king Childeric. It was the seat of a pagus or gau, and counts of Cologne are mentioned in the 9th century.
The nucleus of the later county and duchy was the gau or district surrounding the town of Gelder or Gelre, lying between the Meuse and the Niers, and since 1715 included in Rhenish Prussia.
Of Viti Levu, and the three other main islands, lying east of Viti Levu in the Koro Sea, are Koro, Ngau or Gau, and Ovalau.