A part of Onsøy with 170 inhabitants was moved to the neighboring municipality Fredrikstad on 1 January 1968.
The current main building was erected in the Renaissance style and was completed early in 1749.
His elder son Admiral Henrik Bjelke (1615–83) inherited Elingaard Manor.
[2][3][4] Onsøy is a former municipality in the Norwegian county (fylke) of Østfold, in the region of Østlandet.
Tellingskrets (enumeration districts): 5: Græsvik (lime); 6: Hauge (black); 7: Aale nedre og Rød (green); 8: Okseviken - Krosnes - Viker (red); 9: gaards 56 Fjelle store to 63 Oksrød (purple); 10: Slevik (teal); 11: gaards 74 Fuglesangen to 83 Sund lille (blue)
Tellingskrets (enumeration districts): 12: Stene (lime); 14: gaards 106 Rauø to 112 Engelsviken (black); 15: Manstad (blue) Following are the farms in the Onsøy (formerly Smaalenes) municipality, as they are listed in O. Rygh's series Norske_Gaardnavne ("Norwegian farm names"), the Smaalenes volume of which was published in 1897.
Additional farm numbers missing from the O. Rygh record were found in the 1950 Draft Land Registry.
This tradition began to change in the mid to late 19th century, and inherited surnames were codified into law in 1923.