St. Thomas is situate in the hundred of East, and hath upon the north
St. Stephen’s, east Launceston, south South Pedyrwin, west Egloskerry
and Trewinn. For the name, it is derived from the tutelar guardian and
patron of this church, St. Thomas the Apostle and Martyr (though as
some say St. Thomas à Becket). In the Domesday Book 1087, this parish
was taxed under the jurisdiction of Lansen, now Launceston. In the
inquisition of the Bishops of Lincoln and Winchester 1294, into the
value of Cornish Benefices, Capella Sancti Thomæ in decanatu de
Trigmajorshire, was then rated at 30_s._ In Wolsey’s Inquisition
1521, it is not named, having long before been wholly impropriated to
the abbat or prior of St. Stephen’s, who endowed it.