At the age of sixteen he was apprenticed to an apothecary , his father 's profession , subsequently becoming an apothecary himself , and in NUMBER@1 , at the age of NUMBER@2 , wrote his first work -LRB- Heinrichs IV .

At the age of sixteen he became apprentice in a phamacy and then a pharmacist himself -LRB- like his father -RRB- . In NUMBER@1 , at the age of NUMBER@2 , wrote his first work -LRB- Heinrichs IV .
