Sir Thomas Spencer who built his manorial chapel in 1611 and also built the present tower modified the structure of the whole church at the same time. He also gave Yarnton a peal of six bells. Only one of them has been recast since that time. The Chapel contains two very fine 17th century memorials to members of the Spencer family. The earlier is early Jacobean. The later one is probably by the Flemish sculptor, J M Rysbrach (1694-1770) and is a very fine example of this style. Opposite the memorials are two bookcases installed by the Revd. Vaughan Thomas who was Vicar here for the first half of the 19th century. The funeral bier and his advice against cholera show how much he contributed to the health and well being of his parishioners.