John Jacob Astor IV Alida Rebecca Armstrong, Astor was also a great-grandson of Senator John Armstrong, Jr. and Alida Livingston of the Livingston family. His maternal grandparents were Abraham Schermerhorn, a wealthy merchant, and socialite Helen Van Courtlandt White. He was also a nephew of financier and philanthropist John Jacob Astor III, and grandnephew of occasional poet John Jacob Astor, Jr. His sister Helen's husband was diplomat James Roosevelt "Rosey" Roosevelt, half-brother of President Franklin Delano Roosevelt of the Roosevelt family. Another sister, Carrie, a noted philanthropist, was the wife of Marshall Orme Wilson (brother of banker Richard Thornton Wilson, Jr. and socialite Grace
William Waldorf Astor in the United States. In 1882, President Chester A. Arthur appointed Astor Minister to Italy, a post he held until 1885. He told Astor, "Go and enjoy yourself, my dear boy." While living in Rome, Astor developed a lifelong passion for art and sculpture. Upon the death of his father in February 1890, Astor inherited a personal fortune that made him the richest man in America. That year, he initiated construction of the luxurious Waldorf Hotel, being built on the site of his former residence. His cousin and rival Colonel John Jacob "Jack" Astor IV (1864–1912) built the adjoining Astoria