HMS Madagascar was a 46-gun fifth-rate Seringapatam-class

Seringapatam class frigate

The Seringapatam class frigates, were a successful class of British Royal Navy 46-gun sailing frigates. The first vessel of the class was HMS Seringapatam. The Seringapatam's design was based on the French frigate Président, which the British had captured in 1806...

 frigate, built at Bombay and launched on 15 November 1822.

The Bavarian Prince Otto

Otto of Greece

Otto, Prince of Bavaria, then Othon, King of Greece was made the first modern King of Greece in 1832 under the Convention of London, whereby Greece became a new independent kingdom under the protection of the Great Powers .The second son of the philhellene King Ludwig I of Bavaria, Otto ascended...

 who had been selected as the King of Greece was delivered to his new capital Nafplion

Nafplion

Nafplio is a seaport town in the Peloponnese in Greece that has expanded up the hillsides near the north end of the Argolic Gulf. The town was the first capital of modern Greece, from the start of the Greek Revolution in 1821 until 1834. Nafplio is now the capital of the peripheral unit of...

 in 1833.

In 1843, HMS Madagascar is recorded as calling at Ascension Island

Ascension Island

Ascension Island is an isolated volcanic island in the equatorial waters of the South Atlantic Ocean, around from the coast of Africa and from the coast of South America, which is roughly midway between the horn of South America and Africa...

 accompanied by the steamer Albert, being outfitted for suppression of the slave trade.

The ship was made a storeship and was anchored at Rio De Janeiro

Rio de Janeiro

Rio de Janeiro , commonly referred to simply as Rio, is the capital city of the State of Rio de Janeiro, the second largest city of Brazil, and the third largest metropolitan area and agglomeration in South America, boasting approximately 6.3 million people within the city proper, making it the 6th...

 after 1853 and was eventually sold in 1863.

Commanding officers

• 1830—the Honorable Sir Robert Spencer, second son of the Earl of Spencer
  George Spencer, 2nd Earl Spencer
  George John Spencer, 2nd Earl Spencer KG PC FRS FSA , styled Viscount Althorp from 1765 to 1783, was a British Whig politician...
  
   died aboard ship in Malta
  Malta
  Malta , officially known as the Republic of Malta , is a Southern European country consisting of an archipelago situated in the centre of the Mediterranean, south of Sicily, east of Tunisia and north of Libya, with Gibraltar to the west and Alexandria to the east.Malta covers just over in...
  
  .
• 1830-1834—Captain Edmund Lyons
  Edmund Lyons, 1st Baron Lyons
  Admiral Edmund Lyons, 1st Baron Lyons, GCB, KCH was a British naval commander and diplomat who led a distinguished career in the Royal Navy, culminating with the Crimean War and his appointment as Commander of the Black Sea Fleet...
  
  
• 1838-1839—Provo Wallis
  Provo Wallis
  Admiral of the Fleet Sir Provo William Perry Wallis, GCB was a Royal Navy officer and naval war hero. He was born in Halifax, Nova Scotia and was 100 years old when he died....
  
  , KCB, East Indies
  East Indies
  East Indies is a term used by Europeans from the 16th century onwards to identify what is now known as Indian subcontinent or South Asia, Southeastern Asia, and the islands of Oceania, including the Malay Archipelago and the Philippines...
  
  
• 1840—Out of Commission
• 1841—1844—Captain John Foote, west coast of Africa
  Africa
  Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
  
  
• 1847—Robert Mann
• 1853—John William Finch, storeship, Rio de Janeiro, Brazil
• 1855—John Ptolemy Thurburn, storeship, Rio de Janeiro, Brazil
• 1856—John Mortimer Leycester, storeship, Rio de Janeiro, Brazil
• 1859-1863—Vice Admiral Richard Dunning White, CB, storeship, Rio de Janeiro, Brazil