Wegner is a Norwegian family whose members have been noted as business magnates, estate owners, timber merchants and lawyers.
Born in Königsberg, Benjamin Wegner worked as a businessman in London and Berlin before moving to Norway in 1822 to become managing director and a co-owner of Blaafarveværket, that became Norway's largest mining company and largest industrial company overall under his leadership.
He married Henriette Seyler (1805–1875) in St. Nicholas' Church, Hamburg, on 15 May 1824; she was a member of the Berenberg banking dynasty of Hamburg and the youngest daughter of Berenberg Bank's long-time co-owner and head L.E.
Benjamin and Henriette Wegner had four sons and two daughters, all of whom were born in Norway, where they have many notable descendants.
Sophie Wegner was the mother of the internationally renowned war correspondent Benjamin Wegner Nørregaard, who served as Minister of the Interior in the Tianjin Provisional Government in China, of the barrister and President of the Norwegian Bar Association Harald Nørregaard, who founded the law firm (now known as) Hjort, and of the wine merchant and consul in Tarragona Ludvig Nørregaard.