EXPLORATIONS ON TRAPEZITSA HILL (Mirko Robov – mrobov@abv.bg, Konstantin Dochev) Church No. 3 is built in the style of the Tarnovo School. It is a single-nave with narthex and measures 13 m by 8 m. The apse is 2.70 m wide and 80 cm deep. The wall, preserved up to 60 cm in height, is built of cut stones and bricks. Decorative ceramic four-leafs ornaments and glazed small cups were found. The Prothesis and Diakonikon niches in the altar were situated above the level of the floor. The space in front of the altar was separated with two columns. Their bases stepped on foundations that measured 95 cm by 70 cm. They lay on two stylobates, 1.90 m long and 65 cm wide. There were two pilasters, 1 m by 1.10 m in size, in the western corners of the nave. The southern entrance of the church is 80 cm wide. The threshold was constructed of stone slabs bonded with mortar. Initially, the floor was built of stone slabs arranged over a pad of mortar. Later, a floor of bricks over a pad of mortar was constructed over the earlier floor. Small pieces of the interior frescoes were preserved in situ over the socle. The narthex measure 2.80 m by 5.30 m. Its entrance is in the western wall. Two burial chambers were additionally built in the narthex. Two fragments of marble funerary stelae were found. Open galleries with pavements of stone slabs were explored from the western, northern and southern sides of the church. Wooden columns, which were based on five rectangular foundations, supported a gable-roof. A wall built of cut stones and lime-pit were discovered to the west of the church. Four Christian graves were explored; three of them were situated in the narthex of the church. A brick with incised cross and an inscription IC/XC/NI/KA, which was incised between the lines of the cross, was found under the skull of the deceased in grave No. 1. The deceased was buried in a wooden coffin.