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"Catacombs are caverns, grottoes, and subterraneous caves, destined for the sepulture of the dead. The name catacombs, according to Gregory, was at first applied to designate exclusively the cave in which the bodies of St. Peter and St. Paul were buried, and it was only at a later period that it came to be given to all the subterraneous passages which were used as public burying-places. "—(Charles Leonard-Stuart, 1911)

Catacomb Grave

"Catacombs are caverns, grottoes, and subterraneous caves, destined for the sepulture of the dead. The…