| Name: | Charlotte Auguste (Gustia) Rau ♀ |
| born: | 31 March 1859 in St. Petersburg |
| died: | 1937 in Lübeck |
| buried: | in Lübeck, Burgtorfriedhof |
| Father: Mother: | Jacob Friedrich Rau ♂ (1822 - 1900) Johanna Emilie Strauch ♀ (1831 - 1900) |
| Family with: | Max Köttnitz ♂ (1857 - 1925) |
| married: | 15 April 1884 |