Gladys Moore Vanderbilt, Countess Széchenyi, was an American heiress from the Vanderbilt family and wife of Hungarian Count László Széchenyi. She was an owner of the Breakers, the grandest residence in Newport.
- Occupation
- socialite, nurse
- Citizenship
- United States
- Born
- August 27, 1886
- Died
- January 29, 1965