 Prince Časlav (r. 927–960) may have added the frescoes, which are dated to the 10th century.Byzantine Emperor John I Tzimiskes (r. 969-976) recognized the Ras region as being the "focus of the "Serbian lands"", amid his annexation of the region (organizing it into a Catepanate).The Eparchy of Ras was organized into the newly established Archbishopric of Ohrid (1018), amid the renewed annexation of the region (organizing it into a Theme), as part of a wider Byzantine-Slavic Orthodox area.