Lynnewood Hall is a 110-room Neoclassical Revival mansion in Elkins Park, Montgomery County, Pennsylvania, designed by architect Horace Trumbauer for industrialist Peter A. B. Widener between 1897 and 1900. Considered the largest surviving Gilded Age mansion in the Philadelphia area, it housed one of the most important Gilded Age private art collections of European masterpieces and decorative arts assembled by Widener and his younger son Joseph.
Peter A. B. Widener died at Lynnewood Hall at the age of 80 on November 6, 1915 after prolonged poor health. He was predeceased by his elder son George Dunton Widener and grandson Harry Elkins Widener, both of whom died when the Titanic sank in 1912.(Wikipedia)