Malaysians say farewell to their outgoing King, whose five-year term as Yang di-Pertuan Agong ended today (12 December) according to Malaysia's unique system of elective monarchy. Abdul Halim (b 1927), who has been Sultan of Kedah since 1958, is the first sultan to hold the supreme office twice (1970-75; 2011-16) and has the distinction of having been both its youngest and oldest holder since Malaysia's independence from the United Kingdom in 1957. In 1971 during his first term he represented Malaysia at the Shah of Iran's famous Persepolis celebrations. His successor is the considerably younger Muhammad V of Kelantan (b 1969). (It is already 13 December in Malaysia.)
Monarchs of the World, with Malaysia updated. Thailand's King
Vajiralongkorn didn't last very long as the world's newest monarch.