The Crown Commonwealth of Roberga is a province of the Republic of the Kingdom of Ya'akova.
The Commonwealth was founded when the king gave a tract of land to his relatives to be kept in trust for the generations and to be shared with his family.
The relatives began to quarrel over who would control the new land and began making preparations for conflict. The king, knowing that nothing good should come of it, decided to create the Vassal Royalty of Roberga, uniting the three families of Boelter, Roberg, and Fellows under one single crown. Today, a Jarl rules over the province, being the descendant of all three families.
Today the province, although relatively undeveloped, has become somewhat of a model for other provincial development.