Malrev IV was the site of several battles during the New Sith Wars. In 1750 BBY, the Jedi Order and Mandalorian mercenaries defeated the forces of the Dark Underlord on the planet. Several centuries later, another battle took place at the beginning of the Light and Darkness War.
It had a Sith Temple on it visited by Palpatine. After the Battle of Endor, it was used by Cartariun to control the indigenous Irrukiine and attack Rogue Squadron.
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