The ironclad steam-powered battleship Vasilissa Olga , named for Queen Olga

Olga Konstantinovna of Russia

Grand Duchess Olga Constantinovna of Russia , later Queen Olga of the Hellenes , was the queen consort of King George I of Greece and briefly in 1920, Queen Regent of Greece...

 of Greece, served in the Royal Hellenic Navy from 1869 to 1925. She was the first of two Hellenic Navy ships to bear this name.

The ship was ordered from the then-Austro-Hungarian shipbuilder Stabilimento Tecnico Triestino

Stabilimento Tecnico Triestino

Stabilimento Tecnico Triestino was a private shipbuilding company based in Trieste from the mid-19th to early 20th century, and the most important naval shipbuilding firm of the Austro-Hungarian Empire....

  for approximately £210,000 when the Hellenic Navy had proven itself inadequate during the Cretan uprising of 1866

Cretan Revolt (1866–1869)

The Cretan Revolt of 1866–1869 or Great Cretan Revolution was a three year uprising against Ottoman rule, the third and largest in a series of Cretan revolts between the end of the Greek War of Independence in 1830 and the establishment of the independent Cretan State in 1898.-Background:The...

. Vasilissa Olga served on active duty from 1870 to 1915, but the ship never saw action, as she was converted into cadet training ship in 1894. In 1913, Vasilissa Olga was converted into a hospital ship, stationed at Souda Bay

Souda Bay

Souda Bay is a bay and natural harbour on the northwest coast of the Greek island of Crete. The bay is about 15 km long and only two to four km wide, and a deep natural harbour. It is formed between the Akrotiri peninsula and Cape Drapano, and runs west to east...

and in 1915, she was removed from active duty and converted into an accommodation hulk for the Hellenic Navy's Souda Bay naval station. She was decommissioned in 1925 and was scrapped.