The Llŷn Peninsula extends 30 miles (50 km) into the Irish Sea from North West Wales, south west of the Isle of Anglesey. It is part of the historic county of Caernarfonshire, and historic region and local authority area of Gwynedd. Much of the eastern part of the peninsula, around Criccieth, may be regarded as part of Eifionydd rather than Llŷn, although the boundary is somewhat vague. The area of Llŷn is about 400 km2 (150 sq mi), and its population is at least 20,000.
Edeirnion or Edeyrnion is an area of the county of Denbighshire and an ancient commote of medieval Wales in the cantref of Penllyn. According to tradition, it was named after its eponymous founder Edern or Edeyrn. It was included as a Welsh territory of Shropshire in the Domesday Book.
Llanarmon is a small village and former civil parish in the old commote of Eifionydd and Cantref Dunoding in the Welsh county of Gwynedd. The parish was abolished in 1934 and incorporated into Llanystumdwy. The village lies 4 miles (6.4 km) north east of Pwllheli and is close to the village of Llangybi, a holy well and the mountain of Carn Pentrych. A well-preserved 15th-century manor house at Penarth Fawr is maintained by Cadw, and another ancient monument Plas Du(Welsh: Black Place) is a well-preserved, substantial sub-medieval gentry house. It also has important historical associations; it was known as the centre of the Roman Catholic faith in the region and was the home of Thomas Owen, High Sheriff of Caernarfonshire from 1569, who was imprisoned for sheltering missionary priests in the house in 1571.
"The village is pleasantly situated in a fertile plain, and the neighbour-hood partakes of the pleasing scenery which prevails in this part of the country. The living is a rectory not in charge, annexed to that of Llangybi, in the archdeaconry of Merioneth, and diocese of Bangor, and in the patronage of the Bishop of Bangor. The church, dedicated to Saint Garmon, is an ancient and spacious structure in good repair : some additional windows have lately been inserted, previously to which alteration the interior was very dark."
Samuel Lewis, Topographical Dictionary of Wales (1833)
Llangybi(English: Cybi's Church) is a village and former civil parish in the Eifionydd area of the Welsh county of Gwynedd, near Llanarmon. The parish was abolished in 1934 and divided between Llanystumdwy and Llannor.
Llanfaelrhys is a village and former civil parish in the Welsh county of Gwynedd, located on the Llŷn Peninsula. The parish was abolished in 1934 and incorporated into Aberdaron.
Bodferin is a former civil parish in the Welsh county of Gwynedd. It was abolished in 1934, and incorporated into Aberdaron.
Carnguwch is a former civil parish in the Welsh county of Gwynedd. It was abolished in 1934, and incorporated into Pistyll. The parish included 1,179 feet (359 m) high Mynydd Carnguwch.
Ceidio is a former civil parish in the Welsh county of Gwynedd. It was abolished in 1934, and incorporated into Buan.
Edern, formerly known as Edeyrn, is a village and until 1939 a civil parish, in the Welsh county of Gwynedd. It is about 1 km southwest of the larger village of Morfa Nefyn, near Caernarfon Bay on the north coast of the Llŷn Peninsula, on the B4417 road. The Afon Geirch flows through the village en route to the Irish Sea.
Llandegwning is a village and former civil parish in the Welsh county of Gwynedd. The parish was abolished in 1934, and incorporated into Botwnnog.
Llandudwen is a former civil parish in the Welsh county of Gwynedd. It was abolished in 1934, and divided between Buan and Tudweiliog.
Llanfihangel Bachellaeth is a former civil parish in the Welsh county of Gwynedd. It was abolished in 1934, and incorporated into Buan.
Llangwnnadl is a village and former civil parish in the Welsh county of Gwynedd. The parish was abolished in 1934, and incorporated into Tudweiliog.
Sarn Meyllteyrn is a village and former civil parish in the Welsh county of Gwynedd. It is in the west of the Llŷn Peninsula, 8.4 miles (13.5 km) west of Pwllheli and 24.3 miles (39.2 km) south-west of Caernarfon. The village is often referred to simply as Sarn. The parish was abolished in 1934 and divided between the communities of Botwnnog and Tudweiliog.
Penllech is a hamlet and former civil parish in the Welsh county of Gwynedd. The parish was abolished in 1934, and incorporated into Tudweiliog.
Penllyn is a former civil parish in the Welsh county of Gwynedd. The parish was created in 1894 from the part of Criccieth parish that lay outside the ancient borough. It was abolished in 1934, and divided between Llanystumdwy and Criccieth. The area gives its name to a special stage used during the 2013 Wales Rally GB.
Penrhos is a village and former civil parish in the Welsh county of Gwynedd, located on the Llŷn Peninsula. The parish was abolished in 1934, and incorporated into Llannor.
St Iestyn's Church, Llaniestyn is a medieval church in Llaniestyn, Anglesey, in Wales. A church is said to have been founded here by St Iestyn in the 7th century, with the earliest parts of the present building dating from the 12th century. The church was extended in the 14th century, with further changes over the coming years. It contains a 12th-century font and a 14th-century memorial stone to Iestyn, from the same workshop as the stone to St Pabo at St Pabo's Church, Llanbabo.
Iestyn was a Welsh hermit and confessor in the 6th or 7th century who is venerated as a saint. He was the founder of two churches, one in Gwynedd and another in Anglesey, both in north Wales.
