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Church of St Dwynwen

A Grade II Listed Building in Rhosyr, Isle of Anglesey

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Latitude: 53.1375 / 53°8'15"N

Longitude: -4.4129 / 4°24'46"W

OS Eastings: 238692

OS Northings: 362759

OS Grid: SH386627

Mapcode National: GBR 5B.68J7

Mapcode Global: WH43C.5DWK

Plus Code: 9C5Q4HQP+2V

Entry Name: Church of St Dwynwen

Listing Date: 5 February 1952

Last Amended: 19 October 1998

Grade: II

Source: Cadw

Source ID: 5446

Building Class: Religious, Ritual and Funerary

Location: The church remains lie in a shallow hollow in the centre of Llanddwyn Island.

County: Isle of Anglesey

Community: Rhosyr

Community: Rhosyr

Locality: Llanddwyn Island

Traditional County: Anglesey

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Mainly early C16; the church was dedicated to St Dwynwen, the Welsh St Valentine and Welsh patroness of lovers.


Cruciform plan church of which foundations and parts of the SE transept and walls at the SW corner of the nave remain. Built of rubble with brown sandstone dressings. The walls of the SE transept present the most complete of the remains, the SE wall still standing above the height of the window.

Reasons for Listing

Included for its historic interest as the now picturesque ruins of a C16 church which retain substantial detail.

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