A-Rosa was established in 2001 as ''A'Rosa'', a subsidiary of
P&O Princess Cruises. The company was created to serve the German cruise market alongside the
AIDA Cruises fleet, which P&O had acquired in 1999. A'Rosa was loosely modelled on the AIDA concept and initially operated three ships. ''
A'Rosa Blu was the sole ocean-going cruise ship in the fleet, accompanied by A'Rosa Bella and A'Rosa Donna'', two newly built river cruise ships. In 2003, P&O Princess merged with Carnival Corporation to form
Carnival Corporation & plc. The A'Rosa brand was sold shortly after the merger and was acquired by a private company that owned
A-ROSA Flussschiff. The company continues to operate river cruises on the
Danube,
Main,
Mosel,
Rhine,
Rhône and
Saône rivers. ==A-Rosa Cruises Fleet==