Llandecwyn

The former parish of Llandecwyn stretched from the estuary of the Afon Dwyryd at Pont Briwet to the hills of the Rhinogs.

It also included land across the River Dwyryd: the area of Cefn Coch and around Rhiw Goch and the road to Llanfrothen.

Most of the former parish is now part of the Bro Ardudwy ministry area,[1] which includes Harlech, a few kilometres to the southwest, and Barmouth.

Also within Llandecwyn, there is a Welsh Presbyterian chapel called Bryn Tecwyn which had weekly services until December 2017.

[11] The local landowners were the Wynn family of Maes y Neuadd, who were descended from the 13th Century Osbwrn Wyddel ('Osborn the Irishman').

[12] Other notable residents of Llandecwyn have included: Mary Evans (1735 – 1789), was a mystic and cult leader, known as 'y Fantell Wen' (Whitemantle).

She was either a servant at Maentwrog rectory, or lived at Breichiau between Llys Tecwyn Uchaf and Ceunant Llennyrch.

She claimed to be betrothed to Christ, and led a group of followers in ceremonies on Manod Mawr and other hills.