| Otto Julius Hugo v.Keyserlingk | Cäcilie v.Keyserlingk | Friedrich Ernst Eduard! v.Maydell | Alexandrine (Adine) v.Stackelberg |
| Carl Heinrich Theodor Alfred! v.Keyserlingk | Katharina Alexandrine v.Maydell | ||
| Alfred Heinrich Ernst Graf v.Keyserlingk*14.12.1893, +30.1.1920 |