Family Group Sheet| FATHER | | Sybrant Doytthies Bonga | | BIRTH | 1426 | Kimswerd | | REF # | | 7170; | | | | MOTHER | | Wilsck Idsart Douma | | BIRTH | about 1420 | | | REF # | | 7169; | | FATHER | Idsaert Janckes van Douma | | MOTHER | Gaets Foppes Popma |
| | | CHILDREN | | 1. | Fokel Sybrants Bonga FEMALE | | | BIRTH | about 1450 | | | DEATH | 1525 | Bolsward | | REF # | | 7171; |
| | 2. | Popck Sybrandts Bonga FEMALE | | | REF # | | 8629; |
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