César Cui, beyond being a prolific composer who was part of the Russian classical musical clique The Five (with Mussorgsky, Balakirev, Rimsky-Korsakov and Borodin) and a being music critic was apparently an Engineer-General in the Imperial Russian Army, which is a full fledged general. You were supposed to address him as Your High Excellency, which is apparently impossibly long in Russian (Ваше Высокопревосходительство, or transliterated as Vashe Vysokoprevoskhoditelstvo)