Lord Dunraven married Florence Kerr, second daughter of Lord Charles Kerr. The latter was the first son of
The 6th Marquess of Lothian by his second wife. The Dunravens had three children: • Lady Florence Enid Wyndham-Quin (13 June 1870 – July 1891). • Lady Rachael Charlotte Wyndham-Quin (20 February 1872 – 30 January 1901), married Desmond FitzJohn Lloyd FitzGerald, 27th
Knight of Glin and had children. • Lady Aileen May Wyndham-Quin (9 April 1873 – 25 February 1962), married Lord Ardee, who later became, in 1929,
The 13th Earl of Meath, and had children. In 1869, Lord Dunraven revealed in his diaries, under the title
Experiences in Spiritualism with D. D. Home, that he had slept in the same bed with
Daniel Dunglas Home. Many of the diary entries contain erotic
homosexual references between Home and the then Lord Adare. From 1900 onwards Lord Dunraven developed the gardens on "
Garinish Island" (near
Sneem,
County Kerry, Ireland), which he had inherited from his father,
The 3rd Earl of Dunraven, into a subtropical wild garden. It is still in existence today. The house, called "Garinish Lodge", was burned in September 1922 during the
Irish Civil War (1922–1923), but later rebuilt. Lord Dunraven died in June 1926 at his home in Park Lane, London, aged 85. As he died without a male heir, the earldom passed to a cousin,
Windham Wyndham-Quin, 5th Earl of Dunraven. The barony of Kenry, which had been created for his father, became extinct. He left all his unsettled property (acquired during his lifetime), including Garinish Island, his yacht and racehorses to his only surviving child, Aileen. All the settled property, which included
Adare Manor and other properties there, as well as
Dunraven Castle estate and several valuable coal mines in
South Wales, was left to his successor, his cousin. Dunraven was buried at
St. Nicholas' Church of Ireland in Adare, County Limerick, Ireland. In 1895 Dunraven had lived at 27 Norfolk Street. He held almost 40,000 acres in Ireland and Wales; with 24,000 in Glamorgan, 14,000 in County Limerick, 1,000 in County Kerry and 100 in County Clare, as well as 500 acres in Gloucestershire. ==Legacy and honours==