The fathers began by appealing to English precedent. "Just as twelve bishops were fixed under Canterbury in the south of England, and twelve bishops in the north under the city of York," so it was ordained that there should be twelve bishops in the south of Ireland, and twelve in the north. The constitution of the Irish Church was henceforth, it would seem, to be a copy of that of the English Church. But, as it happens, neither in 1110 nor in any other year of its history, had the Church of England twelve sees under Canterbury and twelve under York. How then can we explain the statement of the Synod? The answer is simple. Bede[50] preserves a letter of Pope Gregory the Great, written in 601, in which St. Augustine of Canterbury was directed to consecrate twelve bishops as his own suffragans. He was also ordered to consecrate a bishop for York, who, if his mission proved successful, was likewise to consecrate twelve suffragans, and to be promoted to the dignity of a metropolitan. It is clear that the Synod found its precedent in this letter, not observing that Pope Gregory's ordinance was never carried into effect. But they made another mistake. For Gregory intended that there should be twelve bishops in the north of England, and twelve in the south, exclusive of the archbishops, twenty-six in all; while it is evident that the Council of Rathbreasail intended that there should be twelve bishops in the north of Ireland, and twelve in the south, including the archbishops, twenty-four in all. Some one whose lead the Synod followed--probably the papal legate--had read his Bede with little care. But that is not surprising. Lanfranc had misread Bede, when on his authority he claimed to be Primate of Ireland; why should not Gilbert have gone astray in like fashion? The point to be noticed and emphasized is that the first act of the Synod was to fix the number of the Irish sees, on the curious principle that what the wisdom of Pope Gregory held to be good for England would suit Ireland also. Apparently the next step in the procedure was to determine the distribution of the dioceses among the provinces, and to fix the see of each prospective diocese. Ireland was divided into two portions by a line running, approximately, from Dublin to Galway. The part to the north of that line was known as Leath Chuinn, the part to the south as Leath Mogha. In Leath Chuinn were the provinces of Ulster and Connaught and the kingdom of Meath; in Leath Mogha were the provinces of Munster and Leinster. The Synod decreed that there should be five sees in Ulster, five in Connaught, and two in Meath, making twelve bishoprics for Leath Chuinn; there were to be seven in Munster and five in Leinster--twelve bishoprics for Leath Mogha. The names of all these sees were given in the Acts of the Synod.