HMS Prince of Orange was a 70-gun third rate ship of the line

Ship of the line

A ship of the line was a type of naval warship constructed from the 17th through the mid-19th century to take part in the naval tactic known as the line of battle, in which two columns of opposing warships would manoeuvre to bring the greatest weight of broadside guns to bear...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

, built to the 1719 Establishment

1719 Establishment

The 1719 Establishment was the first formal 'Establishment' laid down to govern the construction of all ships built or rebuilt down to those of 20 carriage guns, whether in the Royal Dockyards or by commercial contractors...

 at Deptford Dockyard, and launched on 5 September 1734.

In 1748, Prince of Orange was cut down to a 60-gun ship, a role in which she remained until being converted into a sheer hulk in 1772. After nearly 40 years service in this capacity, she was finally sold out of the navy in 1810.
The 'Prince of Orange' was part of the British Fleet at the capture of Louisbourg

Siege of Louisbourg (1758)

The Siege of Louisbourg was a pivotal battle of the Seven Years' War in 1758 which ended the French colonial era in Atlantic Canada and led directly to the loss of Quebec in 1759 and the remainder of French North America the following year.-Background:The British government realized that with the...

in 1758.
David Ramsay, fur trader, revolutionary War soldier, and Indian-killer was a crew member of Prince of Orange at both the battle of Louisbourg and battle of Quebec.