Deganwy is a small town in the county borough of Conwy. It is located south of Llandudno, and to the east of Conwy, which is on the opposite side of the River Conwy. It has a railway station on the Llandudno branch line.
Its most notable feature is Deganwy castle, which,in the 6th century was the stronghold of Maelgwn Gwynedd, king of Gwynedd. Deganwy appears to have been the capital of Gwynedd at this time, but this was later moved to Aberffraw on Anglesey. The hill on which the castle was built was fortified many times over the centuries. It was the site of a Norman castle built around 1082 and occupied by Robert of Rhuddlan, and later by Llywelyn the Great and Llywelyn ap Gruffudd. The castle was later demolished by Edward I when Conway Castle was built opposite so that only ruins remain today.
Deganwy is in the ecclesiastical parish of Llanrhos, and has a fine Victorian gothic church dedicated to All Saints.
The LNWR built at Deganwy a rail connected riverside quay and wharves, largely for the purpose of exporting slate by coastal steamer. The slate was brought by rail from Blaenau Ffestiniog. A fine marina has been established on this site in the 21st century.
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