Bibliographical sources mentioned in this text:
Antoninus 230.17-18
Irenicus, Franciscus 230.3; : Exegeses of Germany, Bk.9, Ch.6 230.13-14; Ch.7 230.15-17
Noviomagus, Gerardus : History of the Bataves 230.11-12
Peutingerus, Chunrades 230.5, 230.7, 230.10, 230.12
Ptolemæus 230.18
Rhenanus, Beatus : German History, Bk.1 230.3-4, 230.6; Bk.3 230.9