John Bligh, 3rd Earl of Darnley of Cobham Hall, Kent, left instructions in his will that a ‘Chapel or Mausoleum’ be built on Williams Hill, an elevated site on his estate. The building was to receive his body, and those of other family members if they should ‘desire it’. It was to be constructed of the finest materials, and the Earl suggested it ‘might be of a kind with four fronts supporting a pyramid in the middle high enough to be conspicuous’.