Mariott International is one of the largest international hotel chains. The owners of the Mariott International corporation date it's appearance to 1927 when a Mariott beer stand opened in Washington. Today Mariott International is a well-known hotel network unifying more than 3000 hotels in the USA and in 60 other countries of the world. Some 10 international hotel chains belong to the Mariott International corportaion, including Renaissance Hotels, Courtyard by Mariott, Mariott Hotels&Resorts, Residence Inns, Ritz Carlton Hotels, Towne Place Suites, Spinghill Suites. The Horse21 Online Hotel Reservation System enables you to book 3 hotels of the Mariott International chain in Hamburg.