Maunder Minimum
First mentioned in 1319 as Trethigwaynton, the name comes from the Cornish language "gwenton" (springtime). The current dwelling has been on the site since at least the 16th century and was altered and extended in the 18th and 19th centuries. The house is a grade II listed building. The walled garden, which was built in Elizabethan times, seems to have been constructed as a response to the period of persistently cooler weather known as the Maunder Minimum. The wall prevented warm air from escaping from the garden on cool nights, thereby allowing frost-sensitive fruit trees to survive, despite the cooling climate.