St Weonards lies within the area known to the Saxons (and later English) as Archenfield, previously the kingdom of Ergyng, adjoining the modern border with Wales.

The chancel arch, part of the south wall, and the inner doorway of the porch, date from the 13th and 14th centuries, as does a large wooden chest.

[2][4] The tump seems to have been used by the Normans as a motte for a small wooden castle, and in later centuries was used as the site of morris dancing and other village festivities.

[4][5] Treago Castle, some 0.3 miles (0.48 km) west of the village, is a mediaeval fortified manor house and Grade I listed building.

It is believed to have been built around 1480 by Sir Richard Mynors, who was Sheriff of Herefordshire in 1500, on land which had been owned by his family at least since the 14th century.