Martin Holtzhey died in a city in the southwest of what country?
Martin Holtzhey Martin Holtzhey (1697, Ulm – 1764, Middelburg), was an 18th-century German medallist and mint master, active in the Netherlands.
Potosí Potosí is a city and the capital of the department of Potosí in Bolivia. It is one of the highest cities in the world at a nominal 4090 m . For centuries, it was the location of the Spanish colonial mint.