The Royal Viking Sun entered Cunard service in 1994 after Cunard's then owners, Trafalgar House Co., purchased Royal Viking Line.
Royal Viking Sun was one of the highest rated ships afloat. Trafalgar House Co., created the Cunard-Royal Viking brand which Royal Viking Sun sailed under.
Cunard sent the Royal Viking Sun on World Voyages and extended voyages, and remained a popular and highly rated ship.
When Cunard Line and Seabourn Cruise Line merged, Royal Viking Sun was moved to the Seabourn brand. After an extensive refit she emerged as the Seabourn Sun and recommenced cruising in late 1999.
In 2002 she undertook her last cruise for Seabourn which was a circumnavigation of South America. The ship was too large for Seabourn Cruise Line. The ship was then transferred to Holland America Line, which is also owned by Carnival Corporation.
She now sails as the Prinsendam, and performs the Global Roaming role for Holland America Line, with a loyal following.