 Originally constructed in the early 13th century, the present church building has undergone numerous alterations, extensions, rebuilds and restorations since this time.An Early English south porch does survive from the original 13th-century structure, however, and records trace the existence of a previous Collegiate church on this site as far back as 1066.The Trinity Chapel of the church was first constructed in 1416, with maintenance of the chapel entrusted to the "Holy Brotherhood of the Trinity".