Princess Catherine Ivanovna of Russia Russian princess (1915–2007) (1915–2007) Parents Prince John Constantinovich of Russia Princess Jelena of Yugoslavia Children Giovanni Farace, Marchese Farace di Villaforesta Nicoletta Farace Fiammetta Farace Siblings Vsevolod Ivanovich of Russia Partners Ruggero Farace, Marchese Farace di Villaforesta