This was a time when spellings varied widely, even within a document. A number of variations of the details below exist. Amongst these are the preference between þ and ð (hard and soft "th").
| Reign
| Incumbent
|
| Notes
|
| 527 to 587 | Aescwine | ÆSCVVINE CENFVSING ESTSEAXNA CYNING ÆSCVVINE REX SAXONVM ORIENTALIVM |
|
| 587 to ante604 | Sledda | SLEDDA ÆSCVVINING ESTSEAXNA CYNING SLEDDA REX SAXONVM ORIENTALIVM |
|
| ante604 to 616/7 | Saebert | SÆBRYHT SLEDDING ESTSEAXNA CYNING SÆBRYHT REX SAXONVM ORIENTALIVM |
|
| 616/7 to 617 | Sexred | SEXRED SÆBRYHTING ESTSEAXNA CYNING SEXRED REX SAXONVM ORIENTALIVM | Joint king with Saeward; killed in battle against the West Saxons
|
| 616/7 to 617 | Saeward | SÆVVARD SÆBRYHTING ESTSEAXNA CYNING SÆVVARD REX SAXONVM ORIENTALIVM | Joint king with Sexred; killed in battle against the West Saxons
|
| 617 to ante c.653 | Sigeberht I the Little | SIGEBRYHT SÆVVARDING ESTSEAXNA CYNING SIGEBRYHT PARVVS REX SAXONVM ORIENTALIVM |
|
| c.653 to 664 | Sigeberht II the Good | SIGEBRYHT SÆVVARDING ESTSEAXNA CYNING SIGEBRYHT SANCTVS REX SAXONVM ORIENTALIVM | Saint Sigeberht; Saint Sebbi (Feast Day 29 August)
|
| 660 to 664 | Swithelm | SVVIÞELM ESTSEAXNA CYNING SVVIÞELM REX SAXONVM ORIENTALIVM |
|
| 664 to 683 | Sighere | SIGHERE SIGEBRYHTING ESTSEAXNA CYNING SIGHERE REX SAXONVM ORIENTALIVM | Joint-king with Sebbi
|
| 664 to c.694 | Sebbi | SEBBI ESTSEAXNA CYNING SEBBI REX SAXONVM ORIENTALIVM | Abdicated in favour of his son Sigeheard
|
| c.694 to c.709 | Sigeheard | SIGEHEARD SEBBING ESTSEAXNA CYNING SIGEHEARD REX SAXONVM ORIENTALIVM | Joint-king with his son Swaefred
|
| c.695 to ante/c.709 | Swaefred | SVVÆFRED SIGEHEARDING ESTSEAXNA CYNING SVVÆFRED REX SAXONVM ORIENTALIVM | Joint-king with his father Sigeheard
|
| 709 to 709 | Offa | OFFA SIGEHERING ESTSEAXNA CYNING OFFA REX SAXONVM ORIENTALIVM | Abdicated
|
| c.709 to 746 | Saelred | SÆLRED SIGEBRYHTING ESTSEAXNA CYNING SÆLRED REX SAXONVM ORIENTALIVM | (aka Swebert) Probably joint-king with Swaefbert
|
| c.715 to 738 | Swaefbert | SVVÆFBRYHT ESTSEAXNA CYNING SVVÆFBRYHT REX SAXONVM ORIENTALIVM | Probably joint-king with Saelred
|
| 746 to 758 | Svvithred | SVVIÞRED SIGEMVNDING ESTSEAXNA CYNING SVVIÞRED REX SAXONVM ORIENTALIVM |
|
| 758 to 798 | Sigeric | SIGERIC ESTSEAXNA CYNING SIGERIC REX SAXONVM ORIENTALIVM | Abdicated
|
| 798 to 812 | Sigered | SIGERED SIGERICING ESTSEAXNA CYNING SIGERED REX SAXONVM ORIENTALIVM | then:-
|
| 812 to 825 | SIGERED DVX SAXONVM ORIENTALIVM | Rank reduced by Mercian overlords
|
| c.825 | Mercia defeated by Egbert of Wessex, sub-kingdom of Essex subsumed into Wessex
|