Archduchess Monika, Duchess of Santángelo Austrian Imperial and Royal (b. 1954) Parents Regina, Crown Princess of Austria Otto von Habsburg Children Santiago de Casanova y Habsburgo-Lorena Gabriel de Casanova y Habsburgo-Lorena Rafael de Casanova y Habsburgo-Lorena Baltasar de Casanova y Habsburgo-Lorena Siblings Karl von Habsburg Archduchess Andrea, Countess of Neipperg Archduchess Walburga, Countess Douglas Georg von Habsburg Archduchess Michaela of Austria Archduchess Gabriela of Austria Partners Luis María Gonzaga de Casanova-Cárdenas y Barón, 6th Duke of Santángelo
