Treaty of Mersen References Treaty of Mersen Germany [870] Ask Anything Homework Help Also known as: Treaty of Meerssen Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Louis II…Louis and Charles by the Treaty of Mersen (Meerssen), under which Louis received Friesland and an extremely large expansion of this territory west of the Rhine. Read More…Louis and Charles by the Treaty of Mersen (Meerssen), under which Louis received Friesland and an extremely large expansion of this territory west of the Rhine. Read More