How should a foreign prince rule a mixed principality according to Niccolo Machiavelli in the prince?

According to Machiavelli, a foreign prince ruling a mixed principality should aim to gain the trust of the local nobility while also keeping the common people content. This can be achieved by balancing displays of authority with acts of generosity to prevent rebellion. The prince should also dismantle any existing power structures that could pose a threat to his rule.