- Llangystennin
Llangystennin (sometimes spelt Llangwstennin) is a
rural parish to the south-east ofLlandudno andLlanrhos inConwy County Borough , northWales .Llangystennin includes Llangwstennin Hall, the
village s of Mochdre,Pabo andBryn Pydew and the smalltown ofLlandudno Junction .The parish takes its name from St. Cystennin (Constantine) who is said to be a son of St. Helen of
Caernarfon (Elen Luyddog ) together with whom and with his brother St. Peblig he is credited with introducing into Wales in the5th century the Celtic form ofmonasticism fromGaul .
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