Question: Who was the last Holy Roman Empress and requested a name day celebration that was completed in August 1803?
Sentence (from "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.
Relevant evidence: Yes