
Formulate an answer to this elaborate question: Roberta Brooke Astor, was an American philanthropist, socialite, and writer who was the chairwoman of the Vincent Astor Foundation, and great-great grandson of America's first multi-millionaire John Jacob Astor, a German–American businessman, merchant, real estate mogul and investor who mainly made his fortune in fur trade and by investing in real estate in or around where??


New York City
