The US financier and investment banker Clarence Dillon (1882-1979) was born under the name Clarence Lapowski. His father Samuel Lapowski was a Polish Jewish immigrant. In 1916 Clarence Dillon bought a majority stake in the investment bank, later renamed "Dillon, Read & Co". In 1935 he bought the famous Graves vineyard Château Haut-Brion
allegedly because he appreciated this wine (see in detail there). His son Clarence Douglas Dillon (1909-2003) was ambassador of the USA in Paris and from 1961 to 1965 he was Secretary of the Treasury under the presidents John F. Kennedy and Lyndon B. Johnson. In 1983, he acquired the Château La Mission Haut-Brion
, which is located exactly opposite, as well as the nearby vineyards Château La Tour-Haut-Brion
and Château Laville-Haut-Brion
. Finally, in 2011 the Saint-Émilion vineyards Château L'Arrosée
and Château Tertre-Daugay
(now Château Quintus) were added. From 1979, the family empire was run by daughter Joan Dillon, a Duchess de Mouchy. Her successor since 2001 is her son Prince Robert of Luxembourg.