"Baron Guy Édouard Alphonse Paul de Rothschild (May 21, 1909 – June 12, 2007) was a French banker and member of the Rothschild family. He chaired the bank Rothschild Frères from 1967 to 1979, when it was nationalized by the French government, and maintained possessions in other French and foreign companies including Imerys."
http://en.wikipedia.org/wiki/Guy_de_Rothschild
http://www.geneall.net/F/per_page.php?id=123943
http://www.thepeerage.com/p19539.htm
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=19897768
http://www.jewishvirtuallibrary.org/jsource/biography/GuyRothschild.html
http://www.nytimes.com/2007/06/14/business/worldbusiness/14rothschild.html?_r=1
http://www.washingtonpost.com/wp-dyn/content/article/2007/06/13/AR2007061302318.html
http://www.telegraph.co.uk/news/obituaries/1554421/Baron-Guy-de-Rothschild.html
http://www.independent.co.uk/news/obituaries/baron-guy-de-rothschild-453616.html
http://www.timesonline.co.uk/tol/comment/obituaries/article1934752.ece