Looking for ancestors parents

Looking for info on parents of Poul Andersen born 19-Feb-1821 Father Anders Larsen, Mother Sedsel Jensdr. Vang/Furnes Parish I cannot seem to trace them back from this date, variations on Sedsel, Sidsel Siessel are found but no luck with Anders Larsen Poul Andersen (https://www.digitalarkivet.no/en/view/255/pd00000010310329)