 After the Belgian Revolution started, Surlet de Chokier was sent by the Arrondissement of Hasselt as a deputy to the National Congress.Elected Chairman of the Congress, Surlet de Chokier was active in the creation of the Belgian Constitution.After the Duke of Nemours refused the Belgian crown that had been offered to him, Surlet de Chokier was appointed Regent of Belgium on 24 February 1831.