Sojourn
From Wookieepedia, the Star Wars wiki.
The Sojourn was a Hammerhead-class cruiser that served as Admiral Carth Onasi's flagship in the years following the Jedi Civil War. The vessel fought in the Battle of Telos alongside a Republic task force against Darth Nihilus and his Sith fleet.
[edit] Behind the scenes
Within the game Star Wars: Knights of the Old Republic II: The Sith Lords, there are two names given for the Sojourn's class. It is referred to both as a Republic Cruiser and as a Republic Frigate. However, in Darth Bane: Path of Destruction, the general class of the vessel is confirmed.
When you leave Telos IV the first time in KOTOR 2 and ask the TSF droid about the Sojourn, the droid calls it 'Valiant' while the subtitles call it 'Sojourn'. This might mean that it was originally called the Valiant but had its name changed.
