Royal Viking Sun entered Cunard service in 1994 after Cunard's owners, Trafalgar House Co., purchased Royal Viking Line.
At the time of the acquisition, Royal Viking Sun was one of the highest rated ships afloat. Trafalgar created the Cunard-ROyal Viking brand which Royal Viking Sun sailed under.
For Cunard, Royal Viking Sun undertook World Voyages in a Global Roaming capacity. She was a popular and highly sought after ship for passengers and crew alike.
When Cunard and Seabourn merged in 1999, 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; a circumnavigation of South America. The ship was too large for the Seabourn offering and instead was transferred to Holland America Line (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.