Age of Chivalry: Hegemony is a mod for Age of Empires II: The Conquerors.
Originally released in 2008, Age of Chivalry: Hegemony has since changed considerably, but remains true to its original goal of giving a more detailed representation of Western and Central European countries, as depicted on the map above. The mod brings in plenty of new units and building graphics, as well as new features such as Policy Decisions, which allow a player to affect the bonuses of their faction during play. There are also numerous new eyecandy objects and other assets intended for scenario designers, and Age of Chivalry additionally incorporates the latest version of the Userpatch, allowing Age of Empires II to be played in widescreen and with populations of up to 1000.
The latest version can be downloaded from ModDB HERE.