St Thomas Church, Southwark, London, England. The first church was part of the original St. Thomas' Hospital which was located to the area around the present St Thomas Street, from the infirmary at St Mary Overie priory (see Southwark Cathedral) in 1212. The hospital was therefore also an Augustinian house. The hospital/ conventual precinct became a parish no later than 1496. It was named after Thomas Becket whose cult pilgrimage began at London Bridge for Canterbury.