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 Latin Church ecclesiastical system.
Pope Adrian IV issued a decree in 1155 called "Laudabiliter" which instructed King Henry II to address issues within the Irish Church and its governance, aligning it with the established practices of the Roman Catholic Church.