St Martin

Welsh slate roofs, except concrete tiles to south aisle.

Pointed 3-light west window with wave-moulded reveal, restored Perpendicular tracery, original hoodmould with carved stops, that to right a grotesque, that to left an imp and lady

Stepped-in upper stage has pointed 2-light traceried belfry windows with incised spandrels and hoodmoulds, pairs of gargoyles to north and south sides, moulded string course, coped embattled parapet with crocketed angle pinnacles.

fine C13-C14 pointed 3-light east window with partly restored geometric tracery, hoodmould and C19 restored headstops.

Interior has moulded roof timbers, good C15 four-centred-arch inner doorway with shafted roll mouldings and incised spandrels in square-headed wave-moulded reveal beneath hoodmould with angels holding shields.

Chamfered Tudor-arched doorway. to tower staircase with original board door and wrought-iron strap hinges.

C14-C15 square-headed 2-light window between chancel and north aisle with trefoiled ogee lights, similar to south side.

Monuments.

Black marble floorslabs in sanctuary to Henry Masterman of 1674, with Latin inscription and roundel containing arms and achievement in relief

black marble slabs in choir to Darcy Stanhope of 1681/2, with Latin inscription, roundel containing arms and achievement in relief, and pair of relief roundels at foot containing skull and crossed bones

Series of ornate Gothic-style marble wall monuments in chancel with crocketed niches, buttress shafts etc: to Edward Peart of 1824

Floorslab behind organ to Mary Burton of 1723 with carved Rococo ornament.

large Gothic-style wall monument to John Littlewood of 1821, with pedestal and tablet in corbelled niche with crocketed ogee hood

Stained-glass east window of 1836 by Thomas Ward of Lincoln

stained-glass north aisle windows of 1847 by Wailes of Newcastle.

Gothic-style 7-bay chancel screen of 1913 by H G Gamble of Lincoln, with Perpendicular tracery, coved hood and rood above with carved wooden figures.

Medieval mensa slab reset as altar in south aisle.

C19 Gothic-style octagonal font brought from Woodhall Spa, Lincolnshire.

Royal arms of Queen Anne, of 1707-14, in north aisle.

Original C19 carved octagonal font in south porch.

The church stands in the outer bailey of a C12 motte and bailey castle.