Familie: N.N. Mantwill / Auguste Gronostay (F15412)
 | Matthis Gronostay (1843-1904) 
|
 | Luise Rogalla (1864-1956)
|
| Heinriette Gronostay (1889-1978)  |
| Fritz Gronostay (1893-1918) |
| Marie Gronostay (1895-1987) |
| August Gronostay (1905-1984) |
| Auguste Gronostay (1897- )
|
