and related: Kiliś, Kostewicz, Pawelski, Sadlakowski, Wyrzykowski...
| Male Franciszek Mazurkiewicz |
| Birth | 3 Jul 1892 | Psucin, nowodworski |
| Christening | 7 Jul 1892 | Pomiechowo, św. Anny, nowodworski |
| Death | 13 Jun 1939 | Strzegocin, pułtuski |
| Burial | 15 Jun 1939 | Strzegocin, pułtuski |
| Marriage | 1915 | Pomiechowo, św. Anny, nowodworski |
| Father | Stanisław Mazurkiewicz | F1760 Group Sheet | |
| Mother | Ludwika Mazurkiewicz (maid. name Zadrożna) | F1760 Group Sheet | |
| Female Kazimiera Stanisława Mazurkiewicz (maid. name Kostewicz) |
| Birth | 20 Nov 1896 | Lelewo, nowodworski |
| Christening | 22 Nov 1896 | Cieksyn, Świętej Doroty |
| Death | 1974 | |
| Burial | Wołomin |
|
| Father | Walenty Kostewicz | F1759 Group Sheet | |
| Mother | Antonina Kostewicz (maid. name Więch) | F1759 Group Sheet | |
| Female + Leokadia Szmigrodzka (maid. name Mazurkiewicz) |
| Birth | 16 Feb 1923 | Kosewo, nowodworski, mazowieckie, Polska |
| Christening | 1923 | |
| Death | 22 Jan 1998 | Strzegocin, pułtuski |
| Burial | 1998 | Strzegocin |
| Spouse | Jan Szmigrodzki | F1717 | |
| Marriage | ||
| Spouse | Piotr Szmigrodzki | F1743 | |
| Marriage | ||
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