Archduchess Monika of Austria

Archduchess Monika of Austria (Monika Maria Roberta Antonia Raphaela von Habsburg-Lothringen), Princess Imperial and Archduchess of Austria, Princess Royal of Hungary and Bohemia, Duchess of Santangelo, (13 September 1954 - ) was born in Würzburg, the daughter of Otto, Crown Prince of Austria and Princess Regina of Saxe-Meiningen. She is the twin sister of Archduchess Michaela.

Archduchess Monika married Luis Maria Gonzago de Casanova-Cardenas y Baron, Duke of Santangelo, son of Balthasar de Casanova-Cardenas y de Ferrer and Maria de los Dolores Baron y Osorio de Moscoso, Duchess of Maqueda, on 21 June 1980 in Germany. They have four children:
 * Baltasar Carlos de Casanova y Habsburgo-Lorena, Duke of Maqueda (b. 17 August, 1981)
 * Gabriel Maria de Casanova y Habsburgo-Lorena, Marquess of Aguilar (b. 23 March, 1983)
 * Rafael Maria de Casanova y Habsburgo-Lorena (b. 18 August, 1986)
 * Santiago de Casanova y Habsburgo-Lorena (b. 26 April, 1993)