Editing 792 (section)

==== Britain ====
* September &ndash; King [[Æthelred I of Northumbria]] marries Princess [[Ælfflæd of Mercia|Ælfflæd]], daughter of King [[Offa of Mercia]], at [[Catterick, North Yorkshire|Catterick]]. Unrest in [[Kingdom of Northumbria|Northumbria]] tempts the [[exile]]d king [[Osred II of Northumbria|Osred II]] back to his kingdom from the [[Isle of Man]]. His supporters desert him, and [[Osred II]] is killed by Æthelred's men at ''Aynburg''. He is buried at [[Tynemouth Castle and Priory|Tynemouth Priory]]. 
* Offa arranges coastal defences to fend off [[Vikings|Viking]] attacks. He forms an [[Military alliance|alliance]] with [[Kingdom of Essex|Essex]], [[Kingdom of Kent|Kent]] and [[Kingdom of Sussex|Sussex]], in an attempt to unify [[England]] (approximate date).{{citation needed|date=May 2020}}
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