 Anna married firstly to Count Ernst of Lippe-Weissenfeld, sixth child and youngest son of Count Franz of Lippe-Weissenfeld and his wife Baroness Marie of Beschwitz, daughter of Baron Ferdinand of Beschwitz, on 21 November 1911 at Schloss Büdingen in Büdingen.Anna and Ernst had one daughter before Ernst was killed at Gołdap on the Eastern Front during World War I on 11 September 1914