To see the presumed family line ( I list here only the Male line) see the attached generations:

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Johann Zelberschwecht Grzymala, 1272
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John Grzymala
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John Grzymala
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Derzlaw Grzymala, 1353
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Wtoszynowski, 1392
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Wyszynski, 1420
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Wyszynski, 1453
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Jerzy Wyszynski, 1480
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Jerzy Laszewski (Wyszinski - Wyszyn'ski) 1519, Laszewo - 1570
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Jerzy (Georg) Laszewski 1548 - Laszewo - 1616 (1634?)
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Michala (Michael) von Laszewski 1583 - Laszewo - 1643 - Sierakowice
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Jacob Johann von Laszewski, 1629 - Laszewo - 1690
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Jacob von Laszewski, 1664 - Sierakowice - 1739 - Sierakowice
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Josef Jacob (Josephum) Zelberschwecht von Laszewskl 21 Jun 1732 - 23 Jan 1796 - Sullenschin, Karthaus, Prussia, Germany
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Tadaeus (Thadeum) Zelberschwecht von Laszewskl 1765 - Suleczyno - 1828 - Buchwalde
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Anton von Laszewskl
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Anton von Laszewskl 2 Dec 1870 - Polzin - 27 Jul 1948 – Allenstein
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Josef Anton von Laszewski
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Reinhard Josef von Laszewski - Allenstein - Stankt Augustin
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Gregor von Laszewski - Sankt Augustin - Columbus, OH - Syracuse, NY - Washington, DC - Bolingbrook, IL - Pittsford, NY - Bloomington, IN