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Tregarnedd, Llangefni

Also known as, or recorded in historical documents as;
Tre-Garnedd Moated Site

In the community of Llangefni.
In the historic county of Anglesey.
Modern authority of Anglesey.
Preserved county of Gwynedd.

OS Map Grid Reference: SH46867464
Latitude 53.24677° Longitude -4.29596°

Tregarnedd, Llangefni has been described as a Fortified Manor House although is doubtful that it was such.

There are uncertain remains.

This site is a scheduled monument protected by law.


The south and western branches of Tre-Garnedd moat are the only remains of a medieval mansion on the edge of Malltraeth Marsh. It was once the seat of Gruffydd ap Rhys or Llwyd, who was knighted by 1301 and was the leading Welshman of north Wales through the earlier fourteenth century. There is a tradition of a siege in 1322. This is a rectangular enclosure, roughly 70m north-south by 90m, defined on the south and west sides by a slight bank and a broad ditch or moat, 8.5-12m wide. The moat acts as a pond at its south-western angle. It is overlain by modern farm buildings. There were said to be visible traces of the house in the twentieth century. (Coflein–John Wiles 03.09.07)

A square enclosure defined by an internal bank and ditch, which survive only on the NW and SW sides. At the W corner the bank remains standing to a height of some 3 m above the bottom of the ditch, which is 5.5 m wide, and just over 1 m above the level of the interior. At the W end of the SW side the ditch/moat has been filled in, and a track runs through to the farm buildings. The interior, about 100 m square, has been much levelled and built over, and only the S corner appears to hav escaped relatively unscathed. Two large cattle sheds and a modern bungalow occupy much of the N part of the site. A section of the NE bank is visible where a ditch has been dug alongside the track which runs along the SE side of the site. (Scheduling Report)
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Sources of information, references and further reading
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This record last updated 05/07/2016 10:42:09