At St Johns near Helston Bridge a hospital was founded c. 1250 by Henry de Bollegh, Archdeacon of Cornwall, and endowed with the manor of Penventon by the Reskymer family.Henry/Thomas de Bolegh, Archdeacon of Cornwall 8 July 1282–bef. 1296; however "c. 1250" is the date given by Charles Henderson in the Cornish Church Guide This foundation consisted in 1324 of a prior and two brethren. The hospital was abolished in 1545; by this time the priors had been non-resident for 50 years, the building was ruinous and a lone chaplain served the chapel. A leper hospital was founded nearby in the 15th century and dedicated to St Mary Magdalene.
