This is a very ancient structure, with the oldest identifiable part being a blocked doorway to the East of the porch. This is Anglo Saxon, and dates from the first half of the 11th Century. The church here is dedicated to St Martin of Tours. A carving of St Martin can be found over the superb Norman doorway on the south side of the church, and dates from the first quarter of the 20th century. Martin of Tours was born around 315 AD in what is now Hungary. Barholm is one of 173 medieval parish churches in England to be dedicated to this saint.
See Peterborough Churchcrawler for more details