sentences:  In 1798 he was invited to become chaplain to Mary Nugent, the Marchioness of Buckingham and to organize and translate a collection of Gaelic manuscripts at Stowe.With him he brought papers of his grandfather to Stowe, including fifty-nine Gaelic manuscripts.In Stowe O'Conor wrote Columbanus ad Hibernos (1810–13),a series of letters supporting the royal veto on Catholic episcopal appointments in Ireland.