Richard Cabell (died 5 July 1677), of Brook Hall, in the parish of Buckfastleigh on the south-western edge of Dartmoor, in Devon, is believed to be the inspiration for the wicked Hugo Baskerville, "the first of his family to be hounded to death when he hunted an innocent maiden over the moor by night", one of the central characters in Conan Doyle's novel The Hound of the Baskervilles (1901-2), the tale of a hellish hound and a cursed country squire. When asked in 1907 about his inspiration for the novel Conan Doyle wrote in reply: "My story was really based on nothing save a remark of my friend Fletcher Robinson's that there was a legend about a dog on the moor connected with some old family". Cabell's tomb survives in the village of Buckfastleigh.
According to Vivian, he was the son and heir of Richard Cabell of Buckfastleigh by his wife Mary Prestwood, a daughter of George Prestwood of Whetcombe.
Squire Richard Cabell (known to posterity as "Dirty Dick") lived for hunting and was what in those days was described as a 'monstrously evil man'. He gained this reputation for, amongst other things, immorality and having sold his soul to the Devil. There was also a rumour that he had murdered his wife, Elizabeth Fowell, a daughter of Sir Edmund Fowell, 1st Baronet (1593–1674), of Fowelscombe in the parish of Ugborough, Devon. Elizabeth is mentioned in his will dated 1671, so was alive at that date. On 5 July 1677, he died and was laid to rest in the sepulchre. The night of his interment saw a phantom pack of hounds come baying across the moor to howl at his tomb. From that night on, he could be found leading the phantom pack across the moor, usually on the anniversary of his death. If the pack were not out hunting, they could be found ranging around his grave howling and shrieking. In an attempt to lay the soul to rest, the villagers built a large building around the tomb, and to be doubly sure a huge slab was placed over the top.
In Methuen's Little Guide on Devonshire (1907), Sabine Baring-Gould wrote:
- "Before the S. porch [of Holy Trinity Church, Buckfastleigh] is the enclosed tomb of Richard Cabell of Brooke, who died in 1677. He was the last male of his race, and died with such an evil reputation that he was placed under a heavy stone, and a sort of penthouse was built over that with iron gratings to it to prevent his coming up and haunting the neighbourhood. When he died the story goes that fiends and black dogs breathing fire raced over Dartmoor and surrounded Brooke, howling."
The Cabell family's mausoleum (known locally as "The Sepulchre") contains the tombs of various members of the Cabell family. It is a grade II* listed building with pyramidal slate roof and three windowless walls, with the fourth closed by an iron railing providing a view of the chest tomb within. According to Sir Howard Colvin it is one of the first two free-standing mausoleums in England, the other being the Ailesbury Mausoleum in Bedfordshire. The names inscribed on the tomb inside are Richard Cabell (died 1612), his wife Susanna (died 1597) and their son Richard (died 1655). Richard, the subject of this article, is also reputed to be buried within. Several legends exist concerning the ghost of Richard Cabell connected with the structure.
- Baring-Gould, Sabine, Devonshire, 1907
- Brown, A., The Cabells and their Kin, 1939
- Vivian, Lt.Col. J.L., (Ed.) The Visitations of the County of Devon: Comprising the Heralds' Visitations of 1531, 1564 & 1620, Exeter, 1895, p.125
- Weller, Philip, The Hound Of The Baskervilles - Hunting the Dartmoor Legend, Devon Books, Halsgrove Publishing, c.2002, quoted in 
- "In January 1907 Cecil Turner wrote to Conan Doyle and asked if Hound of the Baskervilles was based on the Black Dog of Herguest Court legend. He replied in a letter, "My story was really based on nothing save a remark of my friend Fletcher Robinson's that there was a legend about a dog on the moor connected with some old family", this quote comes direct from the letter, that was sold through Bonhams Auction house", quoted in "faeryfolklorist.blogspot.co.uk, Tuesday, 18 October 2011 Wisht Hounds Part 2 - Abbot's Way & Richard Cabell"
- Spiring, Paul (2007). "Hugo Baskerville & Squire Richard Cabell III". BFROnline. Retrieved 29 March 2009.
- "Cabell Tomb — Buckfastleigh". Devon Guide. 2007. Retrieved 29 March 2009.
- Vivian, pp.125, 370
- "Buckfastleigh Church". Legendary Dartmoor. 22 November 2007. Retrieved 29 March 2009.
- "Cabell Mausoleum". Mausolea & Monuments Trust. Retrieved 2 February 2019.