Yakov was the son of Ivan Fyodorovich Koshkin but his mother is unknown. The date and place of his birth have not been found.
|
Ivan Fyodorovich Koshkin |
Fyodor Andrejevich Kobyla |
Andrey Ivanovich Kobyla |
||||||
| | ||||||||
|
Ivan Vladimirovich Rostovsky |
||||||||
|
Vera Andreevna Rostowskaja |
||||||||
| | | | ||||||
| | ||||||||
| | | |||||||
| |