The first church at Llandefalle was probably established around 500 AD and was dedicated to St Maelog, and you can often find the current church mentioned with that dedication. That first church was rebuilt in stone around 1300 AD, and was substantially rebuilt in the late 15th century.
Unlike many churches in the area it largely escaped Victorian restoration, so retains its 15th century character throughout, with the exception of the upper part of the tower (1661) and south chancel windows from 1700.
During the Middle Ages the church was owned by Clifford Priory, across the border in Herefordshire.
The oldest part of the current building is the west end of the nave and north wall, dated to the late 13th century. The lower part of the tower may be from this time period, but most of the rest is 15th century, though the main doorway in the porch may be 16th century. The nave has a wagon roof, possibly 15th century.
There is a Norman font, perhaps 12th century, but the most interesting historic feature is a very nicely carved 14th century screen, which is missing its rood loft. There are several very good 18th century memorials including those to Thomas Williams (d. 1730) and his wife (d. 1739) and a marble plaque to Thomas Williams of Felin Newydd (d. 1779). The altar rails date to around 1660 and feature balusters in a barley-sugar twist pattern.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.