MacMurragh, the ousted King of Leinster, who had sought help in regaining his kingdom. Henry authorised Diarmait to seek help from the soldiers and mercenaries in his kingdom in exchange for an oath of allegiance. In October 1171, Henry landed a large army in Ireland to establish control over both the Cambro-Normans and the Irish. Bull Laudabiliter Historians such as Laurence Ginnell, believe the letters written in the 12th century relating to Ireland were never sealed with any seal and are not correctly called bulls but rather privilegia or privileges. J. H. Round says that the grant of Ireland by Adrian is erroneously styled "the Bull Laudabiliter". It has been so long spoken of as a bull, he says, that one hardly knows how to describe it. He suggests that as long as it is realised that it was only a commendatory letter no mistake can arise. In 1155, Pope Adrian IV issued the papal bull Laudabiliter. The document supposedly commissioned the King Henry II to intervene in Ireland to assist in the reform of the governance of the Irish Church and the Irish system of governance according to the Roman (Latin Rite) ecclesiastical system. This followed the structural reform of the Church in Ireland as defined shortly before at the 1152 Synod of Kells. The bull derives its title from the Latin word laudabiliter (meaning laudably or in a praiseworthy manner), which is the opening word in the bull, the usual manner in which bulls are named. John of Salisbury writes, "I recollect a journey I once made into Apulia for the purpose of visiting his Holiness, Pope Adrian IV. I stayed with him at Beneventum for nearly three months". In English Misrule in Ireland: A Course of Lectures in Reply to J. A. Froude, Burke states that Pope Adrian was elected on the 3rd of December 1154 and suggests that it must have taken at least a month in those days before news of the election would have arrived in England, and at least another before John of Salisbury arrived in Rome making his arrival there around March 1155. In his 1159 Metalogicon, John of Salisbury states that on the occasion of his visit to Adrian IV at Benevento between November 1155 and July 1156, the latter, at his request, granted to Henry II of England the "hereditary possession" of Ireland; he mentioned documentation as well as a