This may be Grethe Amundsdatter in the 1801 census. The census location is Holte Ovre and in the marriage record of Hans and Grethe she is listed as Grethe Amiundsdatter Holte. If so. we have parents and siblings for Grethe from the census and estimated birth year.
Census
https://www.digitalarkivet.no/en/census/person/pf01058193000218
Marriage
"Norway Marriages, 1660-1926", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7RB-RYF : 20 February 2020), Grete Amunsdater Holte in entry for Hans Hendrich Eylersen, 1804.
