The TsarThe Tsaritsa María del Rosario Nadal y Fuster de Puigdórfila (born 22 October 1968), also known as the Princess of Preslav, is a Spanish consultant, art director, and former model.

A former muse for Valentino, she works as an independent adviser to private art collectors and serves as the deputy director of the Colección Jumex.

She is a senior member of the Bulgarian royal family as the estranged wife of Kyril, Prince of Preslav, from whom she separated in 2009.

[1] A member of the Spanish nobility by birth, she is the granddaughter of Joaquín de Puigdórfila y Zaforteza, 9th Count of Olocau.

[5] Rosario also owns and manages Arar Producciones Rurales SL, a Spanish company that cultivates legumes.

[2][13] Rosario married Kyril, Prince of Preslav, the son of Tsar Simeon II of Bulgaria and Doña Margarita Gómez-Acebo y Cejuela, on 15 September 1989 in an Eastern Orthodox ceremony at St. Anne's Chapel in the Almudaina Palace in Palma de Mallorca.