Baltasar de Casanova y Habsburgo-Lorena (born 1981) (b. 1981) Parents Archduchess Monika, Duchess of Santángelo Luis María Gonzaga de Casanova-Cárdenas y Barón, 6th Duke of Santángelo Children Siblings Rafael de Casanova y Habsburgo-Lorena Gabriel de Casanova y Habsburgo-Lorena Santiago de Casanova y Habsburgo-Lorena