HMS Lowestoffe was a 28-gun sixth-rate

Sixth-rate

Sixth rate was the designation used by the Royal Navy for small warships mounting between 20 and 24 nine-pounder guns on a single deck, sometimes with guns on the upper works and sometimes without.-Rating:...

 frigate 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...

. The ship was designed by Sir Thomas Slade based on the earlier Lyme of 1748

HMS Lyme (1748)

HMS Lyme was a 28-gun, sixth-rate frigate of the Royal Navy. Originally ordered as a 24 gun ship to the draft of the French privateer Tyger. The sixth vessel of the Royal Navy to bear the name, the Lyme, as well as the , which was a near-sister, were the first true frigates built for the Royal Navy...

, "with such alterations as may tend to the better stowing of men and carrying for guns." The design provided for a 24-gun ship (from 22 September 1756 this was raised to 28 guns by including the 3 pounders on the quarterdeck in the count) of 583 tons, but on completion the ship measured some 11 tons more.

The ship served in the British operations to capture Quebec

Quebec

Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

 during the Seven Years' War

Seven Years' War

The Seven Years' War was a global military war between 1756 and 1763, involving most of the great powers of the time and affecting Europe, North America, Central America, the West African coast, India, and the Philippines...

before being wrecked off Pointe-aux-Trembles on 19 May 1760.