Who was the last Holy Roman Empress and requested a name day celebration that was completed in August 1803?
St. Francis Mass Michael Haydn completed the Missa sub titulo Sancti Francisci Seraphici, Klafsky I:23, MH 826, on August 16, 1803, apparently at the request of Empress Maria Theresa for a name day celebration.
Marie Louise, Duchess of Parma Marie Louise (Maria Ludovica Leopoldina Franziska Therese Josepha Lucia; Italian: "Maria Luigia Leopoldina Francesca Teresa Giuseppa Lucia"; 12 December 1791 – 17 December 1847) was an Austrian archduchess who reigned as Duchess of Parma from 1814 until her death. She was Napoleon's second wife and, as such, Empress of the French from 1810 to 1814.