Strathclyde

former local government region of Scotland

9 dated entries naming Strathclyde, drawn from 9 separate years between 570 CE and 1107 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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6th century

570Battle of Gwen Ystrad: A British alliance is forged between the kingdoms of Strathclyde, Bryneich and Elmet (approximate date).source
600The Britons of Strathclyde (Scotland), Wales, and Cornwall are all separated by the Anglo-Saxon kingdoms.source

7th century

603Battle of Degsastan: King Æthelfrith of Northumbria defeats the combined forces of the Strathclyde Britons and Scots under Áedán mac Gabráin, establishing the supremacy of the Angles in the northern part of what will become known as the British Isles.source
620The Angles under King Edwin of Northumbria invade Rheged ("Old North") in Northern England, and expel King Llywarch Hen. He flees to Powys, and becomes a famous bard. Edwin's armies fight against Gododdin and Strathclyde.source
685May 20 – Battle of Dun Nechtain: The Picts under King Bridei III revolt against their Northumbrian overlords. Cuthbert, bishop of Lindisfarne, advises King Ecgfrith of Northumbria (Bridei's cousin) not to invade Pictland (modern Scotland). Undeterred, Ecgfrith marches his army north to engage the enemy near Dunnichen. The Picts, possibly with Scottish and Strathclyde Briton help, defeat the Saxon guard, killing Ecgfrith, who has reigned for 15 years, routing his army and forcing the Anglo-Saxons to withdraw south of the River Forth.source

8th century

750Battle of Mugdock: The Strathclyde Britons under King Teudebur defeat Prince Talorgan of the Picts. This leads to the decline of the power of King Óengus I.source

10th century

926King Æthelstan of Wessex and Mercia annexes Northumbria, and forces Wales and Strathclyde to accept his sovereignty along with the Picts and the Scots (approximate date).source

11th century

1092Summer – King William II annexes Cumbria from the Scottish Celtic kingdom of Strathclyde, and builds Carlisle Castle.source

12th century

1107January 8 – King Edgar dies at Edinburgh Castle after a 9-year reign. He is succeeded by his brother Alexander I, who is married to Sybilla of Normandy (an illegitimate daughter of King Henry I). A split of unity, between Alexander and his younger brother David I, makes David co-ruler in Lothian and Strathclyde (Southern Scotland). He does not receive the title of king, but of "Prince of the Cumbrians".source