The first church in Thatcham

In 634AD a Christian missionary named Birnus was sent from Rome to convert the west Saxons. After winning King Cynegils for the faith, Birinus spent several years tramping around Wessex teaching the people. It is most probable that he visited Thatcham at this time and it is believed that a small place of worship was erected on the site of St. Mary's church before 650AD.