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Why did Edward I build Beaumaris Castle?
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Edward I
Edward I, watercolour, 15th century; in the British Library (Cotton MS. Julius E. IV).
Edward I built Beaumaris Castle in Anglesey following a major rebellion in 1294ā1295. The castle was part of a broader program of fortification initiated by the king to secure his conquests in Wales and maintain control over the region.12
Like other great structures built by Edward Iāsuch as Conwy, Caernarfon, and HarlechāBeaumaris was designed to serve as a stronghold that sheltered a borough settled by English colonists. These castles were essential components of the Edwardian settlement, which aimed to consolidate royal authority, reorganize the administration of North Wales into counties, and enforce English law and jurisdiction following the defeat of the Welsh princes.21