Founded in the 13th or 14th century in Llanfilo, the church carry the call of the local Saint Bilo or Beilo, but was also known under the call of Saint Milburg, daughter of the king of Mercia from the 7th century. In 1710 the chancel was rebuilt, and in the nineteenth century, the western part of the building was blocked, which was used as a school room. The western tower was also rebuilt at that time. A thorough renovation of the church was carried out at the beginning of the 20th century.
The church consists of a rectangular, longitudinal nave and a narrower, lower and shorter chancel. On the western side there is a small tower, and the southern entrance portal is protected by a porch from the fifteenth century. Inside, the nave is covered with a wooden barrel-shaped roof truss from the 15th century, built of 54 ribs. There is also a late medieval rood screen separating the nave from the presbytery.
Website britishlistedbuildings.co.uk, Church of St Bilo A Grade I Listed Building in Felin-fach (Felin-fâch), Powys.
Website cpat.demon.co.uk, Church of St Bilo , Llanfilo.