5. Edmund I

Our story thus far has been one of constant triumph for the Anglo-Saxon kings, and in 939AD the young Edmund I inherits a fully fledged English kingdom. But can the first "boy king" live up to the glories of his forebears and earn himself the ultimate accolade...the Rex Factor!

4. Athelstan

We're back from our summer break and to kick us off we have King Athelstan, the first true king of all England (if not Britain). He was a powerful warrior, a prolific law-maker and he even managed to find the time to dally in foreign affairs and create some genuine scandal (though not by having foreign affairs). Is he a shoe-in for the Rex Factor or will this be the toughest challenge yet for the Saxon king?