After two years teaching Mersenne was elected superior of the Place Royale monastery in Paris where he remained, except for brief journeys, until his death in 1648.
Pagkatapos ng dalawang taon ay elected pagtuturo Mersenne superyor ng Lugar Royale monasteryo sa Paris kung saan siya ay nanatili, maliban para sa maikling journeys, hanggang sa kanyang kamatayan sa 1648.