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’.

The earl died in 1781 and was interred in Cobham church. The contents of his will were soon being discussed in polite society, and newspapers across the country reported that the late earl had himself chosen the spot for his resting place, and that the Bishop was to consecrate the ground. The commission to design the structure was given to James Wyatt and his drawings were exhibited at the Royal Academy in 1783, but the project was managed, and possibly tweaked, by George Dance the younger. Work took some time, and the Kentish Gazette noted in April 1787 that the ‘Mausoleum at Cobham-hall is at length near finished’ .

Darnley’s heir, his son John, was still a teenager at the time of his father’s death, and came of age in 1788. In 1790 he asked the landscape gardener Humphry Repton to give advice on modernising the grounds at Cobham.

Repton produced one of his famous Red Books, and the section on the mausoleum and its surroundings makes it clear that at that date the building was still intended as a burial place. Repton recommended planting trees of the ‘funereal kind’ to help ‘inspire the solemn ideas which such a magnificent Record of Mortality is intended to awaken’.

In 1793 Samuel Ireland published Picturesque Views on the River Medway, in which he suggests that the 4th earl was unhappy with the building built for his father. Ireland wrote that the ‘pyramid finish is both ponderous and unmeaning’ and added that he was ‘informed that this angular top is to be removed’. Allowing his readers to judge for themselves on the merits of the structure, he included an engraving. Ireland calls the building the ‘mausoleum’, suggesting it was still intended for this purpose. The plans must have changed, for that ‘ponderous’ pyramid roof remains.

Curiously, the completed building was never consecrated, and so could never function as a mausoleum. This was even explained in verse by H.G. Adams in 1836:

Emerging from the grove, now do they stand
Before a pile of architecture, plann’d
To be the Darnley’s last sad resting place,
The Mausoleum! of that ancient race;
But never had the consecrated rite
Been here performed, nor must their bodies rest
On ground, save that by the holy Prelate bless’d.

The stories differ: one says that the Bishop of Rochester refused to consecrate the building as the earl had treated a parish priest badly. Another account states that the earl’s descendants refused to pay the exorbitant fee demanded by the Bishop, and so the building remained empty, and a further story states that the earl and the bishop argued over the payment of tithes. John Thomas, Bishop of Rochester at the time the mausoleum was constructed, is remembered as a moderate man with a love of the fine arts and architecture, and contemporary evidence for a feud is hard to find, so the true history remains a mystery.

But whatever the reason, the 3rd earl remains in his ‘temporary’ grave in Cobham church. His wife died in 1803, and in her will, written three years earlier, she had stipulated that she was to be buried in the churchyard at Bidborough, near Tunbridge Wells, where she had lived since soon after her son reached his majority. The 4th earl and his countess died only months apart in 1831, and they too were interred in the vault in Cobham church, leaving the mausoleum empty.

The Darnley Mausoleum, as it has continued to be known, suffered appalling vandalism after much of the estate was sold in the 1950s (the house is now a school). Without a resident family, mindless damage soon became a chronic problem. There appeared to be a solution in the later 1980s, when a plan to restore the folly as a family home was announced. The very first newsletter of the fledgling Folly Fellowship contained an article with an illustration of the proposal by Sell, Wade and Postins (a second design by Paul Dyson was admired but not thought economically viable). It would have seen two low arcaded wings added to the existing mausoleum, each terminated with a pedimented pavilion. Planning permission was granted after a four day public enquiry, but the ambitious project never progressed.

In 2001 the Cobham Ashenbank Management Scheme was formed with representatives of the family, heritage bodies and local authorities joining forces to save the building. The Heritage Lottery Fund once more saved the day with a £5 million contribution towards the £8 million restoration costs, with the proviso that the property was placed in the care of the National Trust. The exemplary restoration won a number of awards.

The Folly Flâneuse walked to the mausoleum with a friend who was enjoying a stay in another beautifully restored ornamental building on the estate – the exceedingly cosy Cobham Dairy.

Follies, the magazine of the Folly Fellowship, the charity founded to protect, preserve, and promote follies, grottoes & garden buildings,  is available to consult online thanks to an excellent digitisation project. You can see that very first edition, and many others, http://follies.org.uk/

You can read more about the Cobham Dairy, a Landmark Trust property here https://www.landmarktrust.org.uk/search-and-book/properties/cobham-dairy-27098

The exterior of the Darnley Mausoleum can be visited at all reasonable times. For information on seeing the interior visit the National Trust website.

For another mausoleum that never served its purpose see this post on the lost Cranbrook Castle in Essex.

The Folly Flâneuse wishes all readers a jolly festive season. She is now taking a short break, but further folly ramblings will be forthcoming in 2025