Similar to 南アフリカ連邦の国王

List of Holy Roman Emperors

List of Swedish monarchs

List of Scottish monarchs

List of kings of Sparta

List of monarchs of Eswatini

List of emperors of the Song dynasty

List of Thai monarchs

King of Champa

List of Chinese monarchs

List of monarchs of Korea

List of kings of Joseon

List of Danish monarchs

Count of Toulouse

List of grand dukes of Tuscany

List of emperors of Tibet

List of Trapezuntine emperors

List of monarchs of Tonga

List of emperors of Japan

List of Norwegian monarchs

List of Mahan confederacy monarchs

List of Hawaiian monarchs

List of Hungarian monarchs