The college being suppressed by the French revolutionists, he was confined for some time, and was not allowed to return to England till 1795.

He left the college in July 1809 to go to Claughton, Wyre as assistant to the resident priest, who was in failing health.

[1] About this time, Pope Pius VII decided to reopen the English College, Rome, and on John Lingard's recommendation, Gradwell was appointed rector (1818).

He also acted as Roman agent for the English vicars Apostolic, exhibiting tact and diplomacy in this office.

[2] His writings include: Gradwell also wrote various journals, letters, and manuscripts in connexion with his residence in Rome.