

| Leon Antoni Piwkowski | |
| *: | 24 MAI 1930 |
| Znin | |
| +: | 30 OKT 2015 |
| Niegów, Masowien, Polen | |
| Felicja Kopanska | |
| *: | 18 DEZ 1930 |
| Mogilno | |
| oo: | 12 Aug 1952 |
| Torun | |
| +: | 9 OKT 1985 |
| Warszawa | |
| Kazimierz Piwkowski | |
| *: | 15 JUNI 1925 |
| Znin | |
| +: | 3 Apr 2012 |
| Lübeck | |
| Klemens Piwkowski | |
| *: | 20 Nov 1927 |
| Znin | |
| +: | 21 Nov 1948 |
| Znin | |
|
| Pawel Piwkowski | |
| *: | 24 Jan 1899 |
| Michorzewo (Nowy-Tomycl) | |
| +: | 29 Jan 1954 |
| Gorzyce (Znin) | |
| Kazimiera z Honesto | |
| *: | 4 MÄRZ 1897 |
| Beczkany(Litwa) | |
| oo: | 16 Feb 1924 |
| Warszawa | |
| +: | 27 Jan 1986 |
| Bübingen (Saar) | |