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National Churches Trust
There is no mention of a church in The Doomsday Book but there can be little doubt that there was a place of worship here then. There is a Saxon inscribed stone built into the chancel outer wall which may be a fragment of a Saxon cross.  The original church was almost certainly small with just a nave and chancel. The present church is late Norman and is thought to be built around 1170. In 1516, the roof was replaced and clerestory windows added. The original roof line is still visible. There are many wonderful things to see inside the church, the Royal Coat of Arms dates from 1714, the
Historic England
SE50SW SPROTBROUGH 7/136 Church of St. Mary (Formerly listed as Church 5.6.68 of St Mary the Virgin). GV I Church. C13 and C14 with C15 and C16 alterations and additions. Rubble and ashlar limestone, ashphalt roofs. West tower, 3-bay aisled nave with north and south porches, 2-bay chancel, north vestry. Tower: C14 lower part has chamfered plinth and diagonal, offset buttresses flanking ogee-headed west door with hoodmould; quadrant-moulded 2-light window above with trefoil-headed loop over. Offsets below and above lozenge- shaped clock. Perpendicular upper stage has paired, 2-light belfry openings with cusped, blind panels beneath louvred upper lights, shared hoodmoulds. Blind tracery to parapet with gargoyles and pinnacles. Nave: chamfered