was sold by Cunard to the revolutionary German confederation and was renamed SMS Barbarossa. She had nine guns fitted, and was the flagship of the Reichsflotte under Karl Rudolf Brommy in the Battle of Heligoland. In June 1852 she was transferred to the Prussian Navy and used as a barracks ship at Danzig. In May 1880 she was decommissioned from the Prussian Navy and in July 1880 she was sunk as a target ship. Film depiction of RMS Britannia The funding and first crossing of Britannia were key plot elements in a Warner Brothers film released in 1941 as Atlantic Ferry in the U.K., and Sons of the Sea in the U.S. References External links Britannia on thegreatoceanliners.com SMS Barbarossa http://www.janmaat.de/m_dfbarbarossa.htm Britannia on Chris' Cunard Page https://www.chriscunard.com/history-fleet/cunard-fleet/1840-1900/britannia/ Ships of the Cunard Line Victorian-era passenger ships of the United Kingdom Victorian-era merchant ships of the United Kingdom Steamships of the United Kingdom Paddle steamers of the United Kingdom Ships built on the River Clyde 1840 ships Ships of the Prussian Navy Maritime incidents in July 1880