St Andrew's Church stands in the unfrequented stone belt of South Lincolnshire and was largely rebuilt, apart from the tower, about 1358 by the Pickworth family and ten years later the Black Death had swept away one third of the population, including most of the elderly. The church is built almost entirely in the Decorated style of English Gothic architecture of the 13th and 14th centuries, with a broached spire and an unrestored interior of old pews and a plain 13th century font, whilst an ancient sedilia and a piscina with carved leaves and ugly heads are still in evidence. The south door has been there for 600 years and its decorative ironwork forms the letter C above and below in honour of St Clement the Martyr (100 A D), the patron saint of the smith. There is a mediaeval rood screen of the most delicate workmanship, a two-decker pulpit still with its hour glass stand from 1693, altar rails dated 1767 and important wall paintings from the 14th century.

The rood screen under the chancel arch is 600 years old and by 1964 it was in a very poor condition with the lower section collapsing and parts of the decoration missing but it was restored with consummate skill by Mr J H Palin who reproduced the missing coving, destroyed in 1566, redecorated parts hidden by unwanted coats of varnish and replaced the decaying beam on which the screen rested. Like the 14th century woodcarver who created this work, Mr Palin was left-handed and he was later honoured for his fine craftsmanship with an award from the Architects' Association.

The figure of an early 15th century headless female saint still stands on its corbel and there are beautifully furnished chapels. Above all, there are the wall paintings and they are really what matters at Pickworth but as so often in England they are far too badly preserved to be enjoyed. The murals were originally painted circa 1380 but were partly obscured during re-roofing a century later and covered by white paint circa 1540. They were re-discovered during the Second World War when a bomb fell near the church and displaced large chunks of the whitewash. Mr E Clive Rouse set to work and by carefully chipping away the plaster, gradually uncovered the paintings which were finally revealed in all their glory when his work was completed in 1950, depicting scenes from the Bible, the lives of the saints and examples of the moralities. If one wants to enjoy or indeed to study them, one must look at reproductions and fortunately the church provides a clear broadsheet guide for visitors. Doom, or the Last Judgement, is over the chancel arch depicting more than sixty figures and on the nave south wall three figures are sizzling in that very cauldron but opposite is first the ascending Christ, then the Three Quick and the Three Dead, then the friendly figure of St Christopher while one of the north arcade spandrels contains another picture showing the Weighing of Souls. They are all precious as examples of 14th century art and devotion.

This church is a favourite of Prince Charles and he came here to see the wall paintings in 1971 while learning to fly at nearby R A F Cranwell but found it locked although he returned in 1988 when his visit had a more successful outcome. If anyone wishes to make the pilgrimage to Pickworth, they will find their visit well worthwhile and the key to the church is now available from the house opposite.