 However no battle ensued.In 822 Murchad made another bid for the high kingship and advanced with the men of the north to Ard Brecáin (County Meath).The men of Brega led by Diarmait mac Néill (died 826) of the Uí Chernaig sept of Síl nÁedo Sláine then went over secretly to Murchad and submitted to him at Druim Fergusa.