Rømskog is a parish in Rødenes clerical district of Østfold, Norway. Substitution of oe for ø is sometimes seen - but really isn't the same.
Karen Sophia born 8 August 1828 to unmarried Ingeborg Thorsdatter and Jørgen Halvorsen. See record #18 on right hand page -
http://www.arkivverket.no/URN:kb_read?idx_kildeid=7471&i...http://homepages.rootsweb.com/~norway/articles.html