Princess Seaways was built as the Peter Pan (the third TT-Line ship to bear the name) at Seebeckwerft, Bremerhaven, in 1986.

Having crossed Bass Strait 2,849 times, carried a total of 2.3 million passengers, 807,000 cars and 185,000 containers, the Spirit of Tasmania was laid up in Sydney and sold to Fjord Line and refitted at Ørskov Yard in Frederikshavn.

Fjord Norway was purchased by Danish shipping company DFDS Seaways[3] and renamed Princess of Norway; she joined the DFDS Seaways fleet in November 2006 and was refurbished at Frederikshavn and began sailing on the Newcastle-Stavanger-Haugesund-Bergen route.

Because of the equal capacity and layout of these sister ships, caravans are accepted at every sailing.

The former MS Koningin Beatrix,[5] sold in 1989 to Stena Line and renamed in 2002 as MS Stena Baltica, was built by the Dutch shipyard Van der Giessen de Noord for SMZ to a similar basic design as the four sisters, supplied by A.G.