FRLA meaning in General ?

The Fritz Reuter Literary Archive (FRLA - Fritz Reuter Literaturarchiv) in Berlin, Germany collects autographs and manuscripts by 19th century authors from Mecklenburg, as well as editions of their works. The collections primarily include Fritz Reuter (1810–1874), who wrote mostly in Low German, and Ida Gräfin Hahn-Hahn (1805–1880), who wrote primarily in High German. During the 19th century these two novelists, with Mecklenburgian roots, were counted among the most widely read authors by the German, as well as the reading public in other countries.