Selsey Abbey was founded by St Wilfrid in AD 681 on land donated at Selsey by the local Anglo-Saxon ruler, King Æðelwealh of Sussex, Sussex's first Christian king. The Kingdom of Sussex was the last area of Anglo-Saxon England to be evangelised.

St Peter's Church is the parish church of Selsey, West Sussex, and dates from the 13th century. The church building was originally situated at the location of St Wilfrid's first monastery and cathedral at Church Norton some 2 miles north of the present centre of population.