In 1897 , Otto MÃ nsted , a Danish businessman and margarine magnate , purchased three pieces of land in Ã sterbro , Copenhagen and hired architect Vilhelm Dahlerup to design a villa . In 1897 , Otto MÃ nsted , a Danish entrepreneur and margarine magnate , purchased three parcels of land in Ã sterbro , Copenhagen and commissioned architect Vilhelm Dahlerup to design a villa on the site .