Synod of Kells of Dublin and Tuam to archdioceses. The four provinces of Armagh, Cashel, Dublin and Tuam corresponded to the contemporary boundaries of the provinces of Ulster, Munster, Leinster and Connacht respectively. The diocesan structure established by the synod largely survived until the sixteenth century, and still forms the basis of the territorial structure of both the Catholic Church and the Church of Ireland, with many of the sees now merged. Synod of Kells The Synod of Kells took place in AD 1152, under the presidency of His Eminence Giovanni Cardinal Paparoni, and continued the process begun at the Synod of Ráth
Abbey of Kells have been when the Book of Kells came to Kells. Among other theories, it is believed that the Book of Kells may have been either started in Iona and finished in Kells or written entirely in Kells by successive generation of monks. It certainly was in Kells, and is generally believed to have been brought there from Iona. The Vikings continually raided the abbey during the 10th century and it was repeatedly sacked and pillaged. Despite the constant raids, the monks managed to keep the Book of Kells intact until 1006 when it was stolen from the shrine. A reference