Stupor Mundi

Frederick II, Holy Roman Emperor, King of Germany and Italy, was a man of extraordinary culture, energy, and ability. His contemporaries called him stupor mundi ("the wonder of the world"), and many historians consider him Europe's first modern ruler. The kingdom Frederick established in Sicily and southern Italy ran on an efficient bureaucracy similar to modern, centrally governed kingdoms.

As Frederick II’s vassal, you will summon Allies from around the Mediterranean, build Structures in your castle, and promote Specialists to improve your kingdom.
Certain actions will trigger Edicts that affect Frederick’s Palace, and determine the rewards players may receive from their Allies.
You may improve your chances by upgrading your castles: Towers house additional Allies, Walls store more Resources and Keeps aid in managing Action Cards.

—description from the publisher