Carn Fadryn
Carn Fadryn, sometimes Carn Fadrun or Garn Fadryn, is a five-hectare Iron Age hillfort and is the name of the mountain on which the fort is situated. It lies in the centre of the Llŷn Peninsula, Gwynedd, and overlooks the village of Garnfadryn, Wales.

There seems to be two phases of ancient hillfort building on Carn Fadryn, followed by a medieval fortification of the summit. The first period of fortification at Garn Fadryn dates from about 300 BC, when the summit and an area of some were enclosed.

These were re-fortified during a second period and a wider area towards the north of a total of about was enclosed. This second period of reinforcement dates from about 100 BC.

The third fort which strengthens the natural crag near the summit is thought to be "the castle of the sons of Owain", mentioned in 1188 as being newly built. (Giraldi Cambrensis Opera (Rolls series, 1868), VI, p123 'dua castra lapidea de nova sita fuerunt; unum...Deutrait; alterum...in capite Lhein, quod erat filium Oenei, cui nomen Karnmadrun.')

On a clear day, the view from Garn Fadryn takes in Anglesey, Snowdonia, most of Cardigan Bay and even the Wicklow Mountains in Ireland.
Q35852
hectare
Concept
Q11764
Iron Age
TIME
Q744099
hillfort
Concept
Q1541249
Llŷn Peninsula
LOC
Q109128
Gwynedd
LOC
None
Garnfadryn
UNK
Q12554
medieval
TIME
Q57821
fortification
Concept
Q357824
Giraldi Cambrensis Opera
PER
Q535793
Rolls series
UNK
Q168159
Anglesey
LOC
Q867913
Snowdonia
LOC
Q747189
Cardigan Bay
LOC
Q945002
Wicklow Mountains
LOC
Q22890
Ireland
Concept
Q5043758
Carn Fadryn
LOC
Q5043758
Carn Fadryn
LOC
1188-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1188
DATE
1868-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1868
DATE
+123^^http://www.w3.org/2001/XMLSchema#decimal
123
NUMBER
located in the administrative territorial entity