Editing 918 (section)

==== Britain ====
* [[Battle of Corbridge]]: High-Reeve [[Ealdred I of Bamburgh|Ealdred I]] persuades King [[Constantine II of Scotland]] to help him reclaim his position in [[Bernicia]]. They mount an invasion of his now [[Norse–Gaels|Norse]] controlled lands. The [[Vikings]] under [[Ragnall ua Ímair]] (or '''Rægnald''') defeat the Scots and their allies at [[Corbridge]] (Northern [[Kingdom of Northumbria|Northumbria]]), but take heavy casualties themselves. 
* Summer &ndash; Lady [[Æthelflæd]] of [[Mercia]] begins to intrigue with disaffected factions within the Norse [[Scandinavian York|Kingdom of York]] (also referred to as '''Jórvik'''). Mercian troops ravage the local countryside and peacefully overrun the fortress of [[Leicester]] (belonging to the [[Five Boroughs of the Danelaw]]), while her brother, King [[Edward the Elder]], takes [[Stamford, Lincolnshire|Stamford]].
* [[June 12]] &ndash; Æthelflæd dies at [[Tamworth, Staffordshire|Tamworth]] while campaigning against the Vikings. She is buried with her husband [[Æthelred, Lord of the Mercians|Æthelred]] in [[St Oswald's Priory, Gloucester|St. Oswald's Priory]] at [[Gloucester]]. Æthelflæd is succeeded by her only daughter [[Ælfwynn]]. 
* Kings [[Idwal Foel]] of [[Kingdom of Gwynedd|Gwynedd]] and [[Hywel Dda|Hywel ap Cadell]], and Prince Clydog of [[Deheubarth]] ([[Wales]]) submit to the overlordship of Edward the Elder. The Vikings raid [[Anglesey]].