Kingdom of Essex Monarchs

The Kingdom of Essex is also not well documented. It produced relatively few Anglo-Saxon charters and no version of the Anglo-Saxon Chronicle. As a result, the kingdom is also regarded as comparatively obscure. For most of the kingdom’s existence, the Essex king was subservient to an overlord – variously the kings of Kent, Anglia or Mercia. Eventually the Kingdom of Essex became a principality of the Kingdom of Wessex, Which later became amalgamated into the other Anglo-Saxon kingdoms and henceforth became known as the Kingdom of England, ruled by a Wessex monarch.

Kingdom of Essex Monarchs
	Ruler	Reign: A.D
527 to 587	Æscwine (Aescwine) or Erkenswine, Erchenswine	According to the West-Saxon genealogy, Æscwine is said to be a decendent of Seaxnet, the legendary founder of the saxons, who was the son of the germanic god Wōden (Odin).
587 to 604	Sledda	Some later sources suggest that Sledda is the founder of the East Saxon house.
c. 604 to c. 616	Sæberht (Saebert)	Later medieval legend claimed that Sæberht and his wife had founded the orginal abbey building at the site of the present Westminster Abbey, and that they had been burien in the church. First christian king of the East Saxons.
c. 616 to 617	Sexræd (Sexred)	Joint king with Saeward; killed in battle against the West Saxons (Wessex).
c. 616 to 617	Sæward (Saeward)	Joint king with Sexred; killed in battle against the West Saxons (Wessex).
617 to c. 653	Sigeberht the Little	Son of Sæward.
c. 653 to 660	Sigeberht the Good (Sigeberht II)	Murdered by his own kinsmen by two unnamed brothers; it's believed to be Swithhelm and Swithfrith.
660 to 664	Swithelm	Believed to have murdered sigeberht II with his brother for being to friendly with Christians.
664 to 683	Sighere	Joint king with Sebbi. Wulhere of Mercia established himself as overlord of Essex.
664 to c. 694	Sæbbi (Sebbi)	Joint king with Sighere; abdicated to enter a monastry, and succeeded by his sons Sigeheard and Swæfred.
c. 694 to c. 709	Sigeheard	Joint king with his brother Swæfred.
c. 695 to c. 709	Swæfred (Swaefred)	Joint king with his brother Sigeheard.
709	Offa	Abdicated to take up life in a monastery in Rome, along with Cenred, King of Merica.
c. 709 to 746	Saelred (Swebert or Selered)	Probably joint-king with Swæfberht. Like his predeccessors, Saelred was not an independent ruler, but a dependent of the Kingdom of Mercia.
c. 715 to 738	Swæfberht (Swaefbert)	Probably joint-king with Saelred.
746 to 758	Swithred (also known as Swaefred)	Second son of Sæbbi. Like his predeccessors, he was a dependent of the Kingdom of Mercia.
758 to 798	Sigeric	Son of Saelred. Abdicated, where he made a pilgrimage to Rome and entered a Monastery.
798 to 825	Sigered	Son of Sigeric. In 812 Sigered was reduced to duke by his Mercian overlords. In 825 he finally ceded his kingdom to Egbert of Wessex.
c. 825	Mercia defeated by Egbert of Wessex, sub-kingdom of Essex subsumed into Wessex