Kardam, Prince of Tarnovo Prince of Bulgaria (1962-2015) (1962–2015) Parents Queen Margarita of Bulgaria Simeon II of Bulgaria Children Boris, Prince of Tarnovo Prince Beltrán of Bulgaria Siblings Konstantin-Assen, Prince of Vidin Princess Kalina of Bulgaria Kubrat, Prince of Panagyurishte Kyril, Prince of Preslav Partners Princess Miriam, Princess Ghazi of Jordan