It might be on the site of a previous chantry chapel MartinR, but this circular building wasn't one as such, though burials were installed within. There was also another rectangular chapel on the southern side of this church's chancel also, which was subsequently remodelled into a typical chapel. The nature of this circular structure has its origins back in the mists of time about 2500 years ago, though this one was built towards the end of the eighteenth century.
The village this church is in is a typical 'manorial' settlement with castle at one end and the church at the opposite end and the site of its housing and market place in between the two. It has been called a 'failed' medieval town in the past, but today is still popular with the visitors.