The Strata Florida Abbey reference article from the English Wikipedia on 24-Apr-2004
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Strata Florida Abbey

Strata Florida is a former Cistercian abbey situated near Tregaron in the county of Ceredigion, Wales. Now in ruins, the abbey is in the care of Cadw. It is traditionally the burial place of the greatest Welsh-language poet, Dafydd ap Gwilym, and a memorial to him is to be found on the site.