Valentine Quin was the grandfather of Valentine Richard Quin (1752–1824), the first Earl of Dunraven. Valentine Richard Quin, MP for Kilmallock (1799–1800), was created a Baronet of Great Britain in 1781 and was raised to the peerage in 1800 as Baron Adare. He was advanced to a Viscountcy in 1816 as Viscount Mount Earl and became Viscount Adare and the first Earl of Dunraven and Mount-Earl on 5 February 1822. He chose the title of Dunraven in honour of his daughter-in-law Caroline Wyndham, daughter and heiress of Thomas Wyndham of Dunraven Castle, who in 1810 had married his eldest son and heir, Windham Henry Quin.