Principe has its headquarters in Trieste, where it produces frankfurters and cooked hams, as well as the prestigious Vecchia Trieste smoked cooked ham. These are typical local foods, a legacy from the city's centuries under Austro-Hungarian rule. Principe's innate desire to seek out excellence led it to the Friuli hills, where it has produced Prosciutto di San Daniele PDO since the 1970s, boning and slicing the meat in cutting-edge facilities.