<P> Similarly, the Brittonic colony of Britonia in north western Spain appears to have disappeared soon after 900 AD . </P> <P> 11th Century AD; The kingdom of Ystrad Clud (Strathclyde) was for some time a large and powerful Brittonic kingdom of the Henn Ogledd (the' Old North) which endured until the end of the 11th century, successfully resisting Anglo - Saxon, Gaelic Scots and later also Viking attacks . At its peak it encompassed modern Strathclyde, Dumbartonshire, Cumbria, Stirlingshire, Lanarkshire, Ayrshire, Dumfries and Galloway, Argyll and Bute and parts of North Yorkshire, the western Pennines, and as far as modern Leeds in West Yorkshire . Thus the Kingdom of Strathclyde (Ystrad - Clud) became the last of the Brittonic kingdoms of the old north to fall in the 1090s, when it was effectively divided between England and Scotland . </P> <P> The Britons also retained control of Wales, Kernow (encompassing Cornwall and the Scilly Isles)) until the mid 11th century AD when Cornwall was annexed by the English, with the Isles of Scilly following a few years later . </P> <P> Wales remained free from Anglo - Saxon, Gaelic Scots and Viking control, and was divided among varying Brittonic kingdoms, the foremost being Gwynedd, Powys (including Clwyd and Ynys Mon (Anglesey), Deheubarth (originally Ceredigion, Seisyllwg and Dyfed), Gwent and Morgannwg (Glamorgan . Some of these Welsh kingdoms initially included territories further east, for example Powys included parts of modern Merseyside, Cheshire and The Wirral and Gwent held parts of modern Herefordshire, Worcestershire, Somerset and Gloucestershire, but had largely been confined to the borders of modern Wales by the beginning of the 12th century . </P>

Who lived in britain before the anglo saxons