Francis I, Holy Roman Emperor
Because Linprun had acquired a broad knowledge of mining and mineralogy, in 1750 he was appointed to the Mint and Mines office in Munich, and was often entrusted with negotiations over coinage. In 1753 he represented Bavaria in negotiations over monetary standards in Vienna, where he earned so much trust and respect that the Francis I, Holy Roman Emperor, made him a peer of the realm and the Empress Maria Theresa presented him with an image of her bust on a gold chain.