Question: In what year did the Britain Burma Society founded under the distinguished patronage of  Earl Mountbatten of Burma, Sir Hubert Rance whose formal prefix Sir was strictly governed by law and custom as an honorific address?
Sentence (from "Edwina Mountbatten, Countess Mountbatten of Burma"): Edwina Cynthia Annette Mountbatten, Countess Mountbatten of Burma, ("née" Ashley; 28 November 1901 – 21 February 1960) was an English heiress, socialite, relief worker and the last Vicereine of India as wife of Louis Mountbatten, 1st Earl Mountbatten of Burma.
Relevant evidence: No