House Gerth directs the Empire's diplomacy, foreign relations, and relations between various provinces and the capital. House Varley is responsible for the Empire's Ministry of Religion, whose main responsibility is to maintain amiable relations with the Church of Seiros. House Bergliez rules over the Empire's Ministry of Military Affairs and commands all of the armies that do not directly belong to the emperor. House Hevring has rule over the Empire's domestic affairs, particularly those relating to administration, finance, and the judiciary. House Vestra is responsible for managing the darker tasks of the Empire, as well as the emperor's periphery affairs, including coordinating affairs such as ceremonies and rituals, Imperial consorts, and the Imperial Guard. The head of House Aegir occupies the post of prime minister, with the title being hereditary. House Hresvelg, the royal family, wielded supreme authority over the Empire until the Insurrection of the Seven in Imperial Year 1171, in which much of its power was stripped away by the nobility. All important government ministries and leadership positions are passed down through the same noble families, generation after generation, although that has not stopped political maneuvering among the nobles. The Adrestian Empire is a hereditary monarchy with a rigid hierarchy. Students from the Adrestian Empire are members of the Black Eagles. Garreg Mach Monastery in central Fódlan organizes its Officer's Academy students into three houses, with each house representing a different nation. Halfway in the game, Edelgard succeeds the crown and declares war on the Church and the other two nations. As a result, the Church's influence and following within the Empire have diminished substantially. In recent decades, the Empire's longstanding relationship with the Church of Seiros has cooled due to a political rift, with some believing that the Church's strength comes at the Empire's expense. Adrestian Empire Founding Day is celebrated annually on the 1st of the Great Tree Moon. Its capital city is Enbarr, the largest city in Fódlan, which was chosen for its association with Seiros. It is ruled by a dynasty that can be traced back over 1,000 years to its legendary founder, Great Emperor Wilhelm Paul Hresvelg, who is said to have been crowned by Saint Seiros herself. The Adrestian Empire encompasses the southern part of Fódlan, a relatively lush and bountiful region with ample access to the sea.