Commerce, Linguistics, Perception or Performance, Persuasion, Statecraft.
Influence (Statecraft (Etiquette) Mastery) The Agent can draw on the influence and contacts the Medici posses to accomplish any goal within a bureaucracy. She can have prisoners released, gain dispensations from local laws, gain appointments, find out about hidden persons etc.
Populists (Statecraft (Etiquette) Grand Mastery) The agent is given the title of Maestro and is a leader in Medici affairs. Through the support the Medic posses and their wide contacts the Maestro can engineer major events like riots, guild strikes, border conflicts and so on. Such major acts can have widespread consequences and can bring repercussions, both from outsiders and other major players within the Medici.