 The date of foundation of the church in Llanbeulan is not known for certain , although it is said that a church was founded on this site in 630 by St Peulan . He was a disciple of the Anglesey saint <unk> . The earliest parts of the building date from the 12th century . It was the parish church of the area , and had a chapel of ease at St Mary 's Church , Tal @-@ y @-@ <unk> ( now also closed ) . In November <unk> , records of an <unk> in <unk> show that the priest serving St Peulan 's was one of a number of Anglesey clergymen to have died about that time , which was when the Black Death was affecting Anglesey . During the 19th century , a significant amount of church rebuilding and restoration work took place throughout Anglesey , and St Peulan 's was given a new roof and new internal fittings at this time . It is now a redundant church and has been in the hands of the Friends of Friendless Churches since 2004 ; it is one of four churches on Anglesey for which the charity has responsibility . The charity holds a 999 @-@ year lease with effect from 10 June 2005 . 
