This is one of the few quests that involve the Chateau d'Oraguille that is connected to Northern San d'Oria. In order to get into the Chateau d'Oraguille you must have either San d'Oria Rank 2 or be on or have completed The Emissary or The Three Kingdoms in the respective nations. The Southern San d'Oria quest A Timely Visit will also allow you access to Chateau d'Oraguille if you have at least fame 4, but are low rank. Otherwise, you will be unable to zone in and the guards outside will be quite rude to you. You must also have San d'Oria Reputation 4 in order to actually flag this quest from Chalvatot.