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date: 23 July 2024


The Kings and Queens of Britain

John Cannon,

Anne Hargreaves

Deheubarth was the most powerful of the kingdoms of south Wales. It was formed in the tenth century by the marriage of Hywel Dda of Seisyllwg to Elen of Dyfed, and subsequently extended into Breichiniog. After the Norman conquest Deheubarth had to contend with strong Anglo-Norman infiltration to the south, and particularly into Pembrokeshire. It reached its peak under ‘the Lord Rhys’ in the late twelfth century, but soon disintegrated.... ...

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