The parish church of Llanidloes is dedicated to St Idloes, a seventh century saint about whom very little is known. His feast is celebrated on September 6th and this church is the only one in his dedication. Three manuscripts testify he was the son of Gwyddnabi ab Llawfrodedd who was a red-bearded knight.
The oldest part of the present building is the tower, probably built in the fourteenth century. Considerable repairs were carried out during the reign of Queen Anne and 100 years later the south and east walls were taken down and rebuilt. The internal arcades were acquired from the Abbey at Cwmhir after it was dissolved in 1536. Look out for the Angels above the Arcades, if you look carefully you can see a date engraved on one of them.
There are many great historic building in or around the Town Centre of Llanidloes. In 1280 the Town obtained its first Charter, granted by Edward I, and this was followed in 1344 by a Charter making the town a self governing borough; a status that was retained until as recently as 1974. The lay out of wide streets formed in the shape of a cross that form the heart of the town originated at this time; with the Old Market Hall, the only half timbered hall of its kind in Wales still in its original position, being constructed on the centre of the cross early in the 1600s.
The Old Market Hall is situated right in the heart of the Town of Llanidloes, the streets surrounding it are in the shape of a cross with the Market Hall being right at the centre. It is the only half timbered building of its kind in Wales to remain in its' original position. This fantastic building was constructed in the 1600's. The Old Market Hall is now the setting for a permanent display about the history, construction of timber framed buildings.