The Battle of Benfleet took place between the Vikings and Saxons in 894. This was towards the end of the Saxon period, and the Thames and other waterways made the area vulnerable to Viking attacks. Benfleet was used as a Viking base. However the Vikings were defeated in the battle by the army of King Alfred under the command of Uhtred the Bold. Subsequently a church was built by the Saxons in thanksgiving for the victory over the Vikings. St Mary's church is the most recent church building occupying this site.