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The 650-year-old tower has a tiny spire, and the 15th-century chancel arch opens into a massive arcade in the Transitional style from Norman to Early English.
In 1742 the monuments inside the church were recorded and included: "on the south wall within the rails is a Mural Monument of white marble, with this inscription on a square of black marble in gold letters, which are now scarce[ly] visible: Here lyeth the Bodye of John Killingworth Esquier whoe was twyse married: his former [1st] wife was Beatrix, daughter of Robert Alington of Horseheath, by whome he had two sons and four daughters. The latter [2nd wife] was Elizabeth, daughter of William Cheyney, Esquier, by whom he had three sons and four daughters. He dyed the 23rd of Maye Anno 1617. Aetatis suae 70."
In the churchyard are two more chest tombs, one of which is made of free-stone with a black marble top for Dr Robert Gell who died in 1665 aged 70.
Grade II* listed. Link

Pampisford is a village, south of Cambridge, just off the A505 road near Sawston. The village has a parish church and several thatched cottages.
Wikipedia: Link

Listed buildings and structures are officially designated as being of special architectural, historical or cultural significance. There are over half a million listed structures in the United Kingdom, covered by around 375,000 listings.
Listed status is more commonly associated with buildings or groups of buildings, however it can cover many other structures, including bridges, headstones, steps, ponds, monuments, walls, phone boxes, wrecks, parks, and heritage sites, and in more recent times a road crossing (Abbey Road) and graffiti art (Banksy 'Spy-booth') have been included.

In England and Wales there are three main listing designations;
Grade I (2.5%) - exceptional interest, sometimes considered to be internationally important.
Grade II* (5.5%) - particularly important buildings of more than special interest.
Grade II (92%) - nationally important and of special interest.

There are also locally listed structures (at the discretion of local authorities) using A, B and C designations.

In Scotland three classifications are also used but the criteria are different. There are around 47,500 Listed buildings.
Category A (8%)- generally equivalent to Grade I and II* in England and Wales
Category B (51%)- this appears generally to cover the ground of Grade II, recognising national importance.
Category C (41%)- buildings of local importance, probably with some overlap with English Grade II.

In Northern Ireland the criteria are similar to Scotland, but the classifications are:
Grade A (2.3%)
Grade B+ (4.7%)
Grade B (93%)

Read more at Wikipedia Link