Title : King of Essex
Reign : 664 – c. 694
Died : 695
Parents : Sexred, King of Essex
Joint king with Sighere from 664 – 683.
Sighere reverted to paganism and took alliance with Wessex, while Sebbi remained a Christian with an alliance from Mercia. King Wulfhere of Mercia, gained overlordship of Essex and sent Jaruman, Bishop of Mercia to re-convert all of Essex to Christianity.
In 686 Cædwalla a Wessex sub-king, established himself as overlord in Essex. He and Sebbi invaded Kent and expelled King Eadric and Sebbi ruled over West Kent.
It is said that Sebbi abdicated in c. 694 in favour for his sons Sigeheard and Swaefred who jointly ruled in Essex. Sebbi died in 695 and was buried at the Old St Paul’s Cathedral in London.