Henry Wellesley, 1st Baron Cowley at Waterloo. In 1809 Wellesley became the British envoy to Spain - his eldest brother, by now Marquess Wellesley, was now Foreign Secretary, while his brother Arthur (now Viscount Wellington) was the commander of the Anglo-Portuguese forces in the Iberian Peninsula. Together, the three brothers helped to make the Peninsular campaign a success, and in 1812 Wellesley was knighted. He remained Ambassador to Spain until 1821, but found time to marry again, this time to Lady Georgiana Cecil, daughter of the Marquess of Salisbury. In 1823, Wellesley became Ambassador to Austria, where he remained until 1831. Although he was close
Richard Wellesley, 1st Marquess Wellesley for many years with Hyacinthe-Gabrielle Roland, an actress at the Palais Royal. She had three sons and two daughters by Wellesley before he married her on 29 November 1794. He moved her to London, where Hyacinthe was generally miserable, as she never learned English and she was scorned by high society: Lady Caroline Lamb was warned by her mother-in-law, Elizabeth Milbanke, a noted judge of what was socially acceptable, that no respectable woman could afford to be seen in Hyacinthe's society. Their children were: Through his eldest daughter Lady Charles Bentinck, Wellesley is a great-great-great grandfather to Queen Elizabeth II.