The island of New Curonia was colonised by the Grand Duchy of Curonia in 1642, many conflicts were fought over this island at the time due to it's unnaturally high soil fertility and it's value to biology world wide. After five attempted invasions of the island a larger fort was constructed on top of the already Fort Jacob. This in the end resulted in the nearby town of Jacobsstadt to be completely inclosed within the forts walls.