Gangut (Russian: Гангут) was both the lead ship of the Gangut-class dreadnoughts of the Imperial Russian Navy built before World War I and the last of her class to be completed. She was named after the Russian victory over the Swedish Navy in the Battle of Gangut
in 1714. She was completed during the winter of 1914–15, but was not
ready for combat until mid-1915. Her role was to defend the mouth of the
Gulf of Finland
against the Germans, who never tried to enter, so she spent her time
training and providing cover for minelaying operations. Her crew joined
the general mutiny of the Baltic Fleet after the February Revolution
and joined the Bolsheviks in 1918. She was laid up in 1918 for lack of
manpower and not recommissioned until 1925, by which time she had been
renamed Oktyabrskaya Revolutsiya (Russian: Октябрьская революция: October Revolution).


She was reconstructed between 1931 and 1934 with new boilers, fire-control systems and greatly enlarged superstructures. During the Winter War she bombarded Finnish coastal artillery positions one time. Her anti-aircraft armament was greatly reinforced in early 1941, just before Operation Barbarossa. She provided gunfire support against the Germans during the Siege of Leningrad
despite being bombed three times and under repair for a year. Retained
on active duty after the war she became a training ship in 1954 before
being struck off the Navy List in 1956 and slowly scrapped.
[source: Wikipedia]