1. | Idsert Janckes van Douwema was born in 1404. Family/Spouse: Gaets Foppes Popma. Gaets (daughter of Foppe Popma and Wilsck Gerbranda) was born in 1408. [Group Sheet] [Family Chart]
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2. | Jancko Idserts van Douwema ![]() |
3. | Wilsck Idzerts Douma ![]() Family/Spouse: Sijbrant Doijtthies Bonga. Sijbrant was born in 1418. [Group Sheet] [Family Chart]
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4. | Fokel Sijbrants Bonga ![]() Family/Spouse: Gerlof Piers Donia. Gerlof was born in 1448; died after 1510. [Group Sheet] [Family Chart]
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5. | Pier Gerlofs Donia ![]() |