This part-mounted unit were recruited from among the Lingones tribe of Gallia Lugdunensis, who inhabited the Plateau de Langres in the northern Bourgogne region of Central France, near Dijon. The unit is known from a single inscription - out of almost forty - from High Rochester in Northumberland dated to AD139-43, also on four inscriptions from Lanchester in Durham, two of them dated to c.AD238-44. The unit is possibly attested at Corbridge in Northumberland on an undated stone which, unfortunately, is missing the unit number.

Evidence for the Cohort in Britain

1. CIL VII.1194; privilegia militvm dated late? AD105.
2. Burn 100; CIL XVI.65; military diploma dated July 17th AD122.
3. Lanchester (RIB 1075 base).
4. Corbridge (RIB 1186).
5. High Rochester (RIB 1276, AD139-143).

Cohors Primae Lingonum Gordiana - The First Cohort of Gordian's Own Lingones

6. Lanchester (RIB 1091/1092 AD238-244).