Sir Robert Strange was born in Kirkwall, Orkney, and apprenticed to an engraver in Edinburgh. Strange fought for the Jacobites in the 1745 wars, and, it is said, engraved the plates for the banknotes to the issued by a revived Stuart government.
After the failure of the rising Strange was exiled to France where he spent time in Rouen and Paris before returning to London in 1750.
On his return Strange worked as an engraver and print dealer, In 1760 Strange travelled to Italy and returned to England in 1765 with an international reputation. Strange was knighted in 1787 and died in 1792 in his house at 52 Great Queen Street. 55 and 56 Great Queen Street are presently the site of the Freemason’s Hall. It is most likely number 52 is part of this extensive site.
The National Portrait Gallery holds a significant collection of his engravings https://www.npg.org.uk/collections/search/person/mp11065/sir-robert-strange?role=art including a number of Prince Charles Edward Stuart, Bonnie Prince Charlie.