List of state leaders in 604

603 state leaders - Events of 604 - 605 state leaders - State leaders by year----

Africa

America

*Mayas - Yohl Iknal, Ruler of Palenque 583-604

Asia

*Chalukyas - Mangalesa, Chalukya ruler (597-609)
*China (Sui Dynasty) -
*# Emperor Wen, Emperor of China (581-617)
*# Emperor Yang, Emperor of China (604-617)
*Japan (Asuka Period) - Suiko, Empress of Japan (593-628)
*Korea (Three Kingdoms) -
**Baekje - Mu, King of Baekje (600-641)
**Goguryeo - Yeongyang, King of Goguryeo (590-618)
**Silla - Jinpyeong, King of Silla (579-632)

Europe

*Avars - Bayan II, Avar Khagan (602-617)
*England (Heptarchy) - Aethelbert of Kent, Bretwalda
**East Anglia - Raedwald, King of East Anglia (593-617)
**Essex
***Sledda, King of Essex (587-604)
***Saebert, King of Essex (604-c.617)
**Kent - Aethelbert, King of Kent (580-616)
**Northumbria - Aethelfrith, King of Northumbria (593-616)
**Wessex - Ceolwulf, King of Wessex (597-611)
*Franks
*Austrasia - Theudebert II, King of Austrasia (595-612)
**Neustria - Clotaire II, King of Neustria (584-629)
*Lombard Kingdom - Agilulf, King of the Lombards (591-616)
*Scotland
**Dál Riata - Áedán mac Gabráin, King of Dál Riata (559-608)
**Kingdom of Strathclyde - Rhydderch I, King of Strathclyde (580-612)
*Visigothic Kingdom - Witteric, King of the Visigoths (603-610)

Middle East

*Byzantine Empire - Phocas, Byzantine Emperor (602-610)
*Persia - Khosrau II, Persian Emperor (590-628)