Flag with Cross of Saint Demetrios

We present here a flag as depicted in a fresco from the church of St.Nikolaos Orphanos in Thessaloniki.
The small flag (flamoulon) is attached on the spear of saint Demetrios, the patron saint of the city. Paintings of the church are dated between 1310-1320, during the reign of Andronikos II Palaiologos and may be associated with donations of Kral Milutin of Serbia.