Today Altrip near Speyer. ‘Bell-shaped’, fort with its long side facing the Rhine from the Valentinian period (Cod. Theod. 11,31,4, AD 369) part of the fortress system of the Neckar confluence (Not. Dign. occ. 39; cf. the fortifications providing safe shipping, Symm. Or. 2,20 ). Destroyed in the New Year's night of AD 406/7 by Alani, Suebi and Vands.
1 A. Pabst, 1989, 147 f., 332 ff.
S. V. Schnurbein, H.-J. Köhler, Der neue Plan des valentinianischen Kastells A. (Altrip), in: BRGK 70, 1989, 507-526