The General-Admiral-class ships were a pair of armored cruisers built for the Imperial Russian Navy in the early 1870s.

General-Admiral had five that generated a working pressure of 60 psi (414 kPa; 4 kgf/cm2) so that the engine produced 4,772 indicated horsepower (3,558 kW).

[3] The General-Admiral class carried a maximum of 1,000 long tons (1,000 t) of coal which gave them an economical range of 5,900 nautical miles (10,900 km; 6,800 mi) at a speed of 10 knots (19 km/h; 12 mph).

The ship was reclassified as a 1st-class cruiser on 13 February 1892 and participated the Columibian Naval Review in Hampton Roads, Virginia, the following year.

[8] Gerzog Edinburgski was initially assigned to the Baltic Fleet, but made a lengthy Pacific cruise in 1881–84.

They both participated in numerous minelaying missions in the early years of World War I, but Onega was hulked in 1915 as Blokshiv No.

The sisters were not included in the initial group of evacuated ships and were only permitted to leave in May for Kronstadt after lengthy negotiations with the Germans.

9 was apparently broken up in the 1920s while Dvadsatpyatavo Oktyabrya became a mine storage hulk in 1938 before being sunk as a breakwater in the Neva River around 1959.