The manuscripts of the Ohrid recension or "Western" variant are among the oldest of the Old Church Slavonic language. The recension is sometimes named Macedonian because its literary centre, Ohrid, lies in the historical region of Macedonia. At that period, Ohrid administratively formed part of the province of Kutmichevitsa in the First Bulgarian Empire until the Byzantine conquest. The main literary centre of this dialect was the Ohrid Literary School, whose most prominent member and most likely founder, was Saint Clement of Ohrid who was commissioned by Boris I of Bulgaria to teach and instruct the future clergy of the state in the Slavonic language. The language variety that was used in the area started shaping the modern Macedonian dialects. This recension is represented by the Codex Zographensis and Marianus, among others. The main linguistic features of this recension include: