List of state leaders in 640

639 state leaders - Events of 640 - 641 state leaders - State leaders by year----------

Africa

America

*Mayas - Pacal II, Ruler of Palenque (615-683)

Asia

*China (Tang Dynasty) - Taizong, Emperor of China (627-649)
*Japan (Asuka Period) - Jomei, Emperor of Japan (629-641)
*Korea (Three Kingdoms) -
**Baekje - Mu, King of Baekje (600-641)
**Goguryeo - Yeongnyu, King of Goguryeo (618-642)
**Silla - Seondeok, Queen of Silla (632-647)

Europe

*Avars - Avar Khagan (617–665)
*England (Heptarchy) - Edwin of Northumbria, Bretwalda
**East Anglia - Anna, King of East Anglia (635-654)
**Essex - Sigeberht I, King of Essex (617-653)
**Kent
**Eadbald, King of Kent (616-640)
**Eorcenberht, King of Kent (640-664)
**Mercia - Penda, King of Mercia (c.626-655)
**Northumbria - Oswald, King of Northumbria (633/634-642)
**Sussex - unknown ruler
**Wessex - Cynegils, King of Wessex (611-643)
*Francia (Merovingian Dynasty)
**Neustria - Clovis II, King of Neustria (639-648)
**Austrasia - Sigebert III, King of Austrasia (634-656)
*Great Bulgaria - Khan Kubrat, (632-668)
*Lombard Kingdom - Rothari (636 - 652)
*Scotland
**Dál Riata - Domnall Brecc, King of Dál Riata (629-642)
**Strathclyde - Eugein I of Alt Clut, King of Alt Clut (633-645)
*Visigothic Kingdom
**Chintila, King of the Visigoths (636-640)
**Tulga, King of the Visigoths (640-642)
*Wales List of rulers of Wales:
** Gwynedd Cadafael Cadomedd ap Cynfeddw King of Gwynedd (634-655)

Middle East

*Arabia - Umar, Caliph (634-644)
*Byzantine Empire - Heraclius, Byzantine Emperor (610-641)
*Persia - Yazdegerd III, Persian Emperor (632-651)