The "Ravenna Cosmographer" refers to Vasconia as the whole territory stretching out to the Loire, and so does the "Chronicle of Fredegar", suggesting that it lies south of the Loire. but the nature of this naming is subject to debate. At any rate, Basques on either side of the Garonne are cited in the last independent years of the Duchy up to 768, but this year, its northern boundary was pinpointed on the river Garonne. Several authors have put down this large geographical extent of the 7th-8th centuries to an expansion of the Basques from their assumed original habitations around the Pyrenees.