Rigodulum

RIGODULUM a place on the Mosella (Mosel), protected either by mountains or the river. (Tacitus, Tac. Hist. 4.71.) In the war with Civilis this place was occupied by Valentinus with a large force of Treviri. Civilis, who was at Mainz, marched to Rigodulum in three days (tertiis castris) and stormed the place. On the following day he reached Colonia Trevirorum (Trier). It is supposed that Rigodulum may be Reolon the Mosel. Lipsius assumes Rigodulum to be Rigolnear Confluentes (Coblenz), but that is impossible. Ammianus Marcellinus (Ammian. 16.6) places Rigodulum near Confluentes, but his authority is small; and there may be some corruption in the text.
[G.L]