Monarches 8 / 18
Isa bin Salman Al Khalifa (1933)
Isaac I Komnenos (1007)
Isaac II Angelos (1156)
Isaac Komnenos (1093)
Ismail Adil Shah (1510)
Iziaslav I of Kiev (1024)
Jaja of Opobo (1821)
Jamalul Kiram III (1938)
Jayachamarajendra Wadiyar (1919)
Jayajirao Scindia (1835)
Jayavarman VII (1125)
Jean-Jacques Dessalines (1758)
Jeongjo of Joseon (1752)
Jigme Dorji Wangchuck (1928)
Jigme Wangchuck (1905)
Johan II of East Frisia (1538)
John I Tzimiskes (0925)
John III Doukas Vatatzes (1192)
John IV Laskaris (1250)
John of Islay Earl of Ross (1434)
John V Palaiologos (1332)
John VI Kantakouzenos (1292)
John VIII Palaiologos (1392)