Pelegaos is a ferry  named after a marine conservation area surrounding Corsica and owned and operated by french shipping company La Mridionale,  that was built in October 1997 and  entered service with Norse Irish Ferries, which merged with Norfolkline.
Pelagos was built in October 1997 as the Lagan Viking, entering service with Norse Irish Ferries Belfast to Liverpool route. In February 2001, Cenargo, the owners of Merchant Ferries purchased Norse Irish Ferries. The two companies merged and operated together as Norse Merchant Ferries. 
