A cadaver tomb (or "momentoo mori tomb", Latin for "reminder of death," especially if it depicts only the cadaver and not the living person, too) is like a carved stone bunk-bed with the deceased (usually a married couple but sometimes one person, and the persons were noble, usually royal, because you had to be rich to afford one and have status to be allotted the room in the church for one) shown in life on the top level (life-sized and often kneeling in prayer) and in death on the bottom level, in the grave and complete with worms, rot, and shroud. It's an allegory about how we're all going to end up and how transient earthly glory is. The first one ever constructed was that of Bishop Richard Fleming (who founded Lincoln College, Oxford, and died in 1431) in Lincoln Cathedral (England).
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