Houses Of Black and White

The Houses of Black and White were two noble families descended from the Heroes of Truth and Ideals who united the original warring inhabitants of Unova. Each House desiring ideological supremacy over the other as well as control over the Unovan throne, they periodically warred using Reshiram and Zekrom for centuries, destroying large swaths of Unova in the process, until the people rose up under the assistance of the Sabot Warriors and overthrew both Houses, making them abdicate their claims to the throne.