Roman military colony for the Legio III Augusta, Lambaesis was probably established between 123 and 129 AD under the Roman Emperor Hadrian.
From Schoder's lecture notes:
3rd Legion defending Africa transferred here early 2 c fr. Theveste by Trajan; fortified Camp in Hadrian's time, town under M. Aurelius, made by Sept. Severus capital of Numidia till transfer to Cirta.
Praetorium close: administrative center; standards
Praetorium details: decoration of W. wall
Painted Griffin fresco frag. (museum)
Mosaic: Amphitrite, by Aspasios, 3 c.
Mosaid: Woman -- from painting ?