Lord de Ramsey married Lady Rosamond Jane Frances Spencer-Churchill, daughter of John Churchill, 7th Duke of Marlborough, in 1877. He thereby became the brother-in-law of Lord Randolph Churchill and the uncle (through marriage) of Winston Churchill. They had a London home in Grosvenor Square.[3] Lady de Ramsey died in 1920. Lord de Ramsey survived her by five years and died in May 1925, aged 76. He was succeeded in the barony by his grandson Ailwyn, his son and heir apparent Captain the Hon. Coulson Churchill Fellowes having died on active service in the First World War.
Hon. Reginald Ailwyn Fellowes (20 January 1884 – 19 March 1953), married Marguerite Séverine Philippine Decazes de Glücksberg more usually known as Daisy Fellowes
Kidd, Charles; Williamson, David, eds. (1990). Debrett's Peerage and Baronetage. London and New York: St Martin's Press.{{cite book}}: CS1 maint: location missing publisher (link)
Mosley, Charles, ed. (2003). Burke's Peerage and Baronetage (107th ed.). The Boydell Press.