High Quality Content by WIKIPEDIA articles! The Imperatritsa Mariya-class (Russian: Императрица Мария) battleships were the first dreadnoughts built for the Black Sea Fleet of the Imperial Russian Navy. All three ships were built in Nikolayev during World War I; two of the ships were built by the Rossud Dockyard and the third was built by the Associated Factories and Shipyards of Nikolayev (Russian: ONZiV). Two ships were delivered in 1915 and saw some combat against ex-German warships that had been `gifted` to the Ottoman Empire, but the third was not completed until 1917 and saw no combat due to the disorder in the navy after the February Revolution earlier that year.