Question: The class is named after the first ship in the class "Dmitriy Shostakovich", which in her turn was named after Dmitri Dmitriyevich Shostakovich, a Russian composer and pianist, regarded as one of the major composers of which century?
Sentence (from "Dmitriy Shostakovich-class ferry"): The "Dmitriy Shostakovich" class is a class of seven ro-pax ferries of project B-492/B-493 originally built by Stocznia Szczecinska im Adolfa Warskiego Warskiego in Szczecin, Poland and used by the Soviet shipping companies, Black Sea Shipping Company, Estonian Shipping Company, Baltic Shipping Company and Far Eastern Shipping Company, as ferries and passenger/cruise ships.
Relevant evidence: No