When the Crown Prince accepts the National Assembly's offer to become King, the beginning of his reign will be backdated to the death of his father. But the new King will not be crowned until after the funeral of King Bhumibol Adulyadej, that is if the tradition of a coronation is maintained. King Bhumibol Adulyadej succeeded his brother, King Ananda Mahidol, in 1946, but the coronation did not take place until 1950. Most of the kings in the world today are not crowned; succession is confirmed by taking an oath. Accession ceremonies or coronations, where they do occur, are now usually an optional extra.