Wikipedia
Llanuwchllyn is a village and community in Gwynedd, Wales, near the southern end of Bala Lake (Llyn Tegid). Its population according to the United Kingdom Census 2001 was 834, of whom about 81% were Welsh-speaking. The figures for the 2011 census were: population 617; Welsh speakers 82%.
The parish church of St Deiniol is a Grade II* listed building.
Llanuwchllyn railway station is the headquarters of the narrow gauge Bala Lake Railway, centred on the former Great Western Railway station on the standard-gauge line from Ruabon to Barmouth.
The village was the birthplace of Welsh language author and educationalist Owen Morgan Edwards.
Caer Gai, a Roman fort near Llanuwchllyn, was traditionally known as the home of Cei, the character in the Arthurian legend known in English as Sir Kay. Poets of the 15th century recorded a story, ultimately deriving from the Prose Merlin included in the Lancelot-Grail and the Post-Vulgate Cycle, that King Arthur and Cei were brought up at Caer Gai as foster brothers. Caer Gai is also Grade II* listed.