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. Maria Theresa of Naples and Sicily: Maria Theresa of Naples and Sicily (6 June 1772 – 13 April 1807) was the last Holy Roman Empress and the first Empress of Austria by marriage to Francis II, Holy Roman Emperor.
Maria Theresa of Naples and Sicily