Victorian London - Death and Dying - Church vaults

Grannie was buried in the vaults of St. Martin's Church, Trafalgar Square, her coffin being laid upon that of Uncle Hugh. The vaults were a very awful place - coffins piled upon one another up to the ceiling, and often in a very bad state of preservation - and the funeral was a very ghastly one, all the ladies being enveloped in huge black-hooded mantles, which covered them from head to foot like pillars of crape. 

[nb. the author is writing of the 1840s, ed.]

Augustus Hare, The Story of My Life, 1896