Frostenden is a small village in East Suffolk about 1 mile south-west of Wrentham. It was once a medieval fort with a harbour and a river once run behind the church. All Saints is one of 38 existing round-tower churches in Suffolk and is one of the oldest dating back to either the Norman or Saxon era. The church is 13th c and consists of a nave, 13th c chancel and 15th c south aisle. The porch is an extension of the south aisle and has a 4 centred arch with a 18th c sundial above. The church was signposted off the main road down a single lane farm track. Sadly it was closed but there was a notice saying it usually open on Saturdays but there was a number for the church warden who will meet you or you can make an appointment.