Complex sentence: The same year, the company started discussing establishing a hotel near the railway station, which lead to the establishment of Hotel Terminus, which was owned in part by NSB, in part by Spisevognselskapet and in part by other parties.
Split into simpler sentences: The same year, the company contemplated to establish a hotel near the railway station. The plan materialised in the construction of Hotel Terminus, which was owned in part by NSB, in part by Spisevognselskapet and in part by other parties.