Viscountess Marwyn of Silverbrook

Viscountess Marwyn of Silverbrook is a subsidiary title held by the Duchess of Seastone, and its territorial designation comes from the lands East of Alden's Rise known as Silverbrook. The title may be used in the house of nobles as a courtesy title by the Duchess' heir apparent. While the house of Marwyn no longer controls the land of Silverbrook itself, they retain the title.