For 10 points, identify this composer of the Military and Surprise symphonies.
This man's "Emperor" string quartet quotes his "Gott erhalte Franz den Kaiser." He composed six masses for the Eszterházy family and two oratorios, The Creation and The Seasons. In his Symphony No. 45 in F-sharp, the final adagio movement sees each musician leave one by one until only two muted violinists remain, the "Farewell" symphony. His Symphony No. 94 in G major, one of his London Symphonies, features a sudden fortissimo chord for which it is named. For 10 points, identify this composer of the Military and Surprise symphonies.
This man's "Emperor" string quartet quotes his "Gott erhalte Franz den Kaiser."
(Franz) Joseph {Haydn}