However, air chief marshal was preferred and was adopted in August 1919. The rank was first used on 1 April 1922 with the promotion of Sir Hugh Trenchard. With Trenchard's promotion to marshal of the RAF on 1 January 1927, no officer held the rank until Sir John Salmond was promoted on 1 January 1929.
It was created by Sénatus-consulte on 18 May 1804 and to a large extent resurrected the formerly abolished title of marshal of France. According to the Sénatus-consulte, a marshal was a grand officer of the Empire, entitled to a high-standing position at the court and to the presidency of an electoral college. Italy