There is probably a whole book that could be written about the history of the North Country Continental, which spreads over more than 100 years. The Loreley is a short but complicated chapter near the end, when loco hauled trains were replaced by sprinters. The Loreley name was first used in 1988, with the train running to and from Blackpool North. Going towards Harwich it had a Birmingham portion. In 1989 the northern end was changed to Liverpool Lime Street, and there was a Birmingham New Street portion in both directions. In 1990 the northbound train ran to Liverpool without the Birmingham portion and the southbound train ran from Birmingham, without the Liverpool portion, but with a portion for Norwich. The name was dropped in 1991.
The train ran through to/from Liverpool Central from after World War I until 1963 though, as far as I'm aware, not via Cambridge. The route was Ipswich-Ely-March-Lincoln Central-Sheffield Victoria and Manchester Central (where the train reversed).