Upon the flight of
provost Robert Huntington of
Trinity College, Dublin, in 1689, Moore became the college's first
Catholic provost. He acquired the post via the influence of
Richard Talbot, Earl of Tyrconnell, to whom he was
chaplain and
confessor. The
Catholic Encyclopedia states "The college was seized by the Jacobites, the chapel was made a powder magazine, one portion of the building was turned into a barrack, and another into a gaol for persons suspected of disaffection to the royal cause. .. He {Moore} upheld the rights of the college, secured it from further pillage, and endeavoured to mitigate the treatment of the prisoners. With the librarian, Father McCarthy, he prevented the soldiery from burning the library, and by preserving its precious collections rendered an incalculable service to letters." However, a sermon which Moore delivered in
Christ Church Cathedral concerning King James's ecclesiastical policies so offended the king that he was obliged to resign the post in 1690; after this, he returned to Paris. He moved to Rome in 1691 when King James arrived in Paris, after fleeing Dublin in the wake of the Jacobite defeat at the
Battle of the Boyne. ==In Rome==