Church of Agia Kyriaki in Mavronoros

The Church of Agia Kyriaki in Mavronoros, Grevena, is a small, single-aisled church located at the western edge of the settlement. It was built on the site of an earlier cemetery church, as evidenced by the discovery of a coin from the Komnenian period (1081–1185 AD) found in a coffin-shaped tomb during restoration work. Originally, the church had a gabled roof covered with slate tiles and masonry reinforced with wooden bindings. The semi-cylindrical apse of the sanctuary is decorated externally with a band of brick fishbone patterns, while the entrance is located on the western side. On the exterior walls, there are shallow arched niches, and above the entrance, there is a depiction of Agia Kyriaki, while the Last Judgment is portrayed on the western wall.

The interior of the church is richly adorned with wall paintings from two phases. The older ones, created by a local iconographer, date back to the second half of the 15th century and are preserved on the eastern wall, where the Virgin Mary as Vlacherna, the Annunciation, and the Hierarchs in Liturgy are depicted. Of particular interest is the depiction of Agios Stefanos, the First Martyr, in the apse of the Prothesis, holding a chalice of Communion instead of a censer. The wall paintings from the second phase, dating between the 16th and 17th centuries, add significant historical and artistic value to the church, making it an important cultural treasure of the region.