A Clone Wars era Seperatist Recusant-class Destroyer.
Late in the Clone Wars, a Republic Star Destroyer ambushed the Nova Defiant, blasting it until it plummeted from orbit, the ship crash landed on the surface of Innerton II.
Opportunistic Seperatists conspired to salvage useable portions of the ship, relocate them undergroundand, and use them to form a new base.
The war ended before the base was completed, and the Separatist forces fled, leaving the base abandoned and forgotten until the Rebellion found it.
The rest of this once great cruiser can be found, bent and broken, on the north eastern edge of the Senol forest.