294 COMIN: DOWROG - TRELEDDYD - TRETIO 
GRID REFERENCE: SM771273
AREA IN HECTARES: 218.7
Historic Background
An area of modern Pembrokeshire lying centrally within St David's Peninsula,
which appears to have been open, wet common throughout history. It lay
within the medieval Cantref Pebidiog, or 'Dewisland', which was held directly
by the Bishops of St David's, having represented the core of the bishopric
from 1082 when it was granted (or confirmed) by Rhys ap Tewdwr, king of
pre-Conquest Dyfed, to Bishop Sulien. From 1115, when Bernard, was appointed
Bishop of St David's, Anglo-Norman systems of feudal government and ecclesiastical
administration were introduced into Pebidiog, which was conterminous with
the later Hundred of Dewsland created in 1536. However, Welsh tenurial
systems appear to have persisted, though variously adapted, and many feudal
rights and obligations continued even into the early 20th-century. The
area comprises a number of distinct, but united expanses of unenclosed
land, by far the largest of which is 'The Dowrog', whose name is derived
from dwfr, 'water', and the suffix -og meaning a 'watery place or marsh',
indicating that the land was always wet, though peat-cutting was undertaken
in drier areas. First mentioned in 1670, The Dowrog does not appear in
the Black Book of St David's of 1326, and so presumably was never subject
to formal, manorial common administration, and was treated as informal
waste. However, a small area to the northwest was waste or 'moor' belonging
to the medieval vill of Treledydd, while a larger area to the northeast
was the formal Tretio Common. Here, clearly defined encroachments appear
to be 'quillets' of open fields rather than squatter encroachments, possibly
representing 13th- or 14th-century encroachments from the vill of Tretio.
In general, the very wet nature of the area has prevented concerted efforts
at encroachment. Part of the area is now managed by the West Wales Wildlife
Trust.
Base map reproduced from the OS map with the permission
of Ordnance Survey on behalf of The Controller of Her Majesty's Stationery
Office, © Crown Copyright 2001.
All rights reserved. Unauthorised reproduction infringes Crown Copyright
and may lead to prosecution or civil proceedings. Licence Number: GD272221
Description and essential historic landscape components
This historic landscape character area consists entirely of unenclosed
common. It covers of several interconnected tongues of land which occupy
the bottoms of hollows and open valleys in the centre of St David's parish,
lying between 45m and 55m. It is a wet area, marshy and peaty, with occasional
stretches of open water. Very little grazing now takes place, and on the
few drier areas scrubby woodland is beginning to develop. Peat was formerly
cut on the common. There are no settlements or buildings within the area.
Recorded archaeology is limited to a bronze age standing stone and possible round barrow, a Roman findspot, peat cuttings and a post-medieval gravel-pit.
This is a very well defined historic landscape character area. It is surrounded by a landscape of fields and farms.
Sources: Charles 1992; James 1981; Lewis 1833; St David's tithe map and apportionment, 1840-41; Willis-Bund 1902