Felix Ua Duib Sláin
…tithes of Kilkenny Castle to Brother Osbert, the Prior of Saint John's Hospital, allowing them to develop the Augustinian abbey. He moved the see from Aghaboe Abbey to St Canice's Cathedral, Kilkenny, due to war in the Leinster region. Felix was unafraid of the powerful Norman lords, excommunicating Theobald Walter…