The Liberté was a Maquis vessel in use in the 2370s. It was originally a pleasure cruiser which had been damaged by an asteroid impact, and was salvaged by the Maquis. It was given its name (which means "freedom" in French) by its pilot, Malames. It had a maximum velocity of warp 5, and could accomodate twenty passengers and crew.
The Liberté was forced to land on a moon of Salva IV following an attack by Cardassian forces in early 2373, but was later able to leave the system, evading capture by both the Cardassians and Starfleet, in the person of Commander William Riker. (TNG - Slings and Arrows eBook: A Weary Life)