His Britannic Majesty’s Ship
His Britannic Majesty’s Ship abbreviated H.B.M.S. or H.B.M. Ship was a ship prefix used for ships of the British Royal Navy.
The term Her Majesty's Ship may possibly have been used during the reign of Elizabeth I of England for ships of the Navy Royal. and the term His Majesty's Ship may have been used during the reign of Charles I of England and official sources indicate that it was in use certainly by the time of establishment of Royal Navy in 1660 at the start of the reign of Charles II of England. Other sources indicate that Her Britannic Majesty’s Ship was first used following the Act of Union in 1707 uniting the Kingdom of England with the Kingdom of Scotland to create the Kingdom of Great Britain ruled then by it's first monarch Anne of Great Britain, hence (British, Britannia, or Britannic). The term His Britannic Majesty’s Ship would have first been used at the start of the reign of George I of Great Britain. However by the 1770's Her Majesty’s Ship abbreviated H.M.S. or H.M. Ship started to gain prominence, with the first recorded use of the abbreviated form "H.M.S." in 1789, in respect of H.M.S. Phoenix. By the early 19th century the term Her Britannic Majesty’s Ship appeared to die out.