Princess Helene, Princess Eugen of Bavaria Bavarian Royal (1921-2017) (1921–2017) Parents Franz, 8th Prince of Khevenhüller-Metsch Princess Anna, Princess of Khevenhüller-Metsch Children Ysabel Princess of Bavaria Siblings Maximilian, 9th Prince of Khevenhüller-Metsch Partners Prince Eugen of Bavaria Prince Konstantin of Bavaria