Guess #1:
Nicolaus Copernicus
Space = Arguably the founding father of astronomy
Europe = He was born in then Prussia, a country in Europe
Coin = He wrote "Monetae cudendae ratio", aka "On the Minting of Coin" or "On the Striking of Coin", an entire paper on coinage & currency.
Stroke = Copernicus went into a coma which was induced by a stroke, and passed away.
