Aldrian recalled one of the names from the list of noble families that have a 'not harmonious' relationship with the Rivas family: the Lucard family, led by Duke Lucard on the eastern side of the empire. In the Doria Empire, there are four grand dukes, each with their faction, particularly when it comes to matters concerning the throne.
The Rivas family remains neutral, showing little concern for the empire's succession struggle as they are more focused on the border's situation. However, the Rivas family is renowned as the strongest noble house, making their position strategically significant in any political movement. For instance, their alignment with one faction could disrupt the balance of the political landscape.
The Lucard family, as part of a faction under one of the grand dukes who has chosen a prince, views the Rivas family as both an obstacle and a threat. Although the Rivas remain neutral, many factors could lead to changes in the future.