The Royal Hotel was constructed in the early 20th century at St. Martin Street, the main road in the City Centre. For a few weeks in late 1918 and early 1919, the building housed the command headquarters of the Wielkopolska Uprising. Part of the reason for having chosen the building was the patriotic mind-set of its owners as well as its convenient location, which guaranteed secrecy. The Uprising was a massive armed insurgency by Poles which liberated Poznań as well as large swathes of Wielkopolska from German power. Its triumph proved to be critical for the final provisions of the peace conference that ended World War I, swaying the parties to award the area to a newly independent Poland.