A vice-admiral (VAdm) is a flag officer rank of the Royal Navy and equates to the NATO rank code OF-8. It is immediately superior to the rear admiral rank and is subordinate to the full admiral rank.
The equivalent rank in the British Army and Royal Marines is lieutenant-general; and in the Royal Air Force, it is air marshal.
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Vice-Admiral Robert FitzRoy FRS (5 July 1805 – 30 April 1865) was an English officer of the Royal Navy, politician and scientist who served as the second governor of New Zealand between 1843 and 1845.
He achieved lasting fame as the captain of HMS Beagle during FitzRoy's famous survey expedition to Tierra del Fuego and the Southern Cone, which took Charles Darwin round the world.
View the full Wikipedia page for Robert FitzRoy