 In 1902 (some sources say 1906), Ludwig Roselius, under pressure from the previous owners, bought the house at 6 Böttcherstraße (today's "Ludwig Roselius Museum") and made it the headquarters of his company, which would later produce the HAG coffee brand.He bought other lots in the street in the years thereafter.In the years after World War I, further offices, the "HAG-Haus", the "Haus St. Petrus", and the House of the Seven Lazy Brothers were constructed.