Bibliographical sources mentioned in this text:
Adonis 38.5, 38.13
Ammonius 38.5, 38.13
Ausonius 38.2, 38.6, 38.14
Belleforest : Cosmography 38.7, 38.15
Bouchet, Ioannes : Chronicle of Aquitania 38.7, 38.15
Cæsar 38.2, 38.10
Haye, Ioannes de la 38.8
Marcellinus, Ammianus 38.2, 38.10
Pinetus, Antonius : Description of Cities 38.8, 38.16
Plinius 38.2, 38.6, 38.10, 38.14
Ptolemæus 38.2, 38.6, 38.10, 38.14
Rogerius, Petrus is mentioned in the cartouche of the Poitou map as its maker Ort38
Strabo 38.2, 38.10
Thevet : Cosmography 38.8, 38.16