Overview of a Noble Tile:
1) Prestige points
2) Quantity of bonuses for a visit
The noble tiles are visible in the middle of the table. At the end of their turn, a player automatically receives the visit from a noble if that player has the amount of bonuses (and only bonuses) required, and they get the corresponding tile.
A player cannot refuse a visit from a noble.
Receiving a noble isn’t considered to be an action. Each noble tile is worth 3 prestige points, but players can only get a single one per turn.