John Jacob Astor IV IV was born on July 13, 1864 at his parents' country estate Ferncliff in Rhinebeck, New York. He was the youngest of five children and only son of businessman, collector, and race horse breeder/owner William Backhouse Astor, Jr. and socialite Caroline Webster "Lina" Schermerhorn. His four elder sisters were Emily, Helen, Charlotte, and Caroline ("Carrie"). He was a great-grandson of fur-trader John Jacob Astor and Sarah Cox Todd, whose fortune made the Astor family one of the wealthiest in the United States. Astor's paternal grandfather William Backhouse Astor, Sr. was a prominent real estate businessman. Through his paternal grandmother, Margaret
John Jacob Astor purchased ten tons of Turkish opium, then shipped the contraband item to Canton on the packet ship "Macedonian". Astor later left the China opium trade and sold solely to the United Kingdom. Astor's business rebounded in 1817 after the U.S. Congress passed a protectionist law that barred foreign fur traders from U.S. territories. The American Fur Company came to dominate trading in the area around the Great Lakes. John Jacob Astor had a townhouse at 233 Broadway in Manhattan and a country estate, Hellgate in Northern New York City. In 1822, Astor established the Robert Stuart House on Mackinac Island