|Depiction of St Demetrius as deacon or as nobleman and not as soldier|
|St. Demetrius wearing no soldier clothes|
There are no informations about the relics of the saint. The next period was very difficult for the cities on Danube. After repeated incursions of the barbarians in the V-VI centuries, Sirmium was in decline, the episcopal see ceased to exist. Sirmium decaded later and during the Slavic migration its importance was replaced with Belgrade (the former Singidunum), situated at the confluence of Sava with Danube. ). At this time many other relics many of the Pannonian saints were moved to other areas, where they continued to be worshiped. So happened with St. Demetrius moved to Thessalonica, St. Anastasia to Rome, etc. In any case, the veneration of the saint is recorded in some texts. St. Theophylact of Bulgaria, bishop of Ochrid (1088/89-1125) mentioned about a pilgrimage to St. Irenaeus (probably in Sirmium) and so miracles occurred there, in the Vita of the 15 martyrs from Tiveriopolsk.
|Ruins of Sirmium|