Sidi Medien is a village in Zaghouan Governorate, Tunisia.
The town formerly known as Vallis under the French is on the A3 motorway from Tunisia, and has a mosque, and the remains of a Roman Theater. VALLES, Vallis, Henchir Sidi Median (Africa Proconsularis). A number of Roman Inscriptions can be found near the theater.Frank Sear, Roman Theatres: An Architectural Study (OUP Oxford, 2006) p289. The Roman era city appears to have been a colonia, by the name of Vallitanus. Vallitanus. References