Voyager (mirror)

Dark Passions
After Agent Seven of Corps. Nine successfully forced Kira Nerys to resign and abdicate her role as Overseer in 2369, Seven was given a ship by Intendant of Sol B'Elanna Torres, to which Terran slave leader Kathryn Janeway was released.

Seven further places Janeway's loyal followers - [Chakotay]], Beverly Crusher, Tom Paris, Robin Lefler, Selar, Harry Kim and Jerem - aboard the ship.

Seven makes Janeway the ship's captain and the ship heads off to "right the Universe" (Star Trek: Dark Passions, Book 2).

Mirror Trilogy
In 2370, followers of Cardassian female Gul Rutal crossed into the alternate Universe at Earth Station McKinley, where they downloaded Starfleet's entire blueprints for the upcoming ship U.S.S. Voyager NCC-74656 (and the EMH, and then they left (TOS novel Spectre).

Late 2374 saw Jean-Luc Picard oversee construction of the ship at the Goldin Discontinuity (TOS novel Dark Victory).

The ship was then launched in 2374 under the command of Rutal. Shortly after, the ship was hurled into the Delta Quadrant by The Caretaker to assist the race called Ocampa. In 2375 whilst still in the vicinity of The Caretaker's Array, the ship metTalaxian Neelix, who was persuaded onboard as a guide, only to realise he'd become a prisoner.

Rutal then let the Kazon-Ogla destroy the Array. When agents from the alternate Universe (crew of USS Enterprise-E) were located on their ship, we sent Ensign Margaret Clark to spy on them, which resulted in us visiting their Universe.

Afterwards, we and their ship returned to our own Universe. However, the ship was soon commandeered by Kathryn Janeway and the alternate-James T. Kirk, leaving Rutal behind (TOS novel Spectre).

Soon after this, Tiberius commandeered U.S.S. Enterprise-E and Janeway decided there was no option other than to ram her ship into the Enterprise (TOS novel Dark Victory).