Farming has been carried on here for a very long time. Tresillian Barton, meaning the home farm in the sun was originally spelt Tresulian in 1335. It is likely that it has been the home farm of the Tresillian estate since medieval times. History records that the infamous Sir Robert Tresillian, was born in 1340 in the original manor house on the site of the present Tresillian House.