It descended to George de Dunbar, 11th Earl of March, whose titles & estates were declared forfeit by the Scottish parliament in 1435, and retired into obscurity in England.

[2] The title of Earl of Dunbar was revived in 1605 for George Home, 1st Lord Hume of Berwick, Chancellor of the Exchequer, and his heirs male.

Subsequent claimants to the title[7][8] In 1721 James Murray (c.1690–1770), second son of David Murray, 5th Viscount of Stormont, was created Earl of Dunbar, Viscount of Drumcairn and Lord of Hadykes in the Jacobite Peerage by James Francis Edward Stuart, the "Old Pretender".

[21] In 1810 Sir John Home of Renton, Bt.,[clarification needed] served notice that he was preparing a case to lay before The House "to the title, honour, and dignity of Earl of Dunbar, as heir male to the first patentee".

During the 19th century Mr Home Drummond of Blair Drummond, Perthshire, as descended from, and heir male of, Patrick Home of Renton, uncle of George, 1st Earl of Dunbar, also had a claim to that peerage.