Mirrix held the position of one of the wives to Sha-Mar Ma-dred, the King of Kashir.
Prior to the events of the clone wars, Anakin Skywalker, accompanied by his master Obi-Wan Kenobi, journeyed to a conference with King Sha-Mar Ma-dred. As the Jedi drew near to the king, Mirrix, alongside the other wives—Tiarri, Kheann, and Ashala—were in attendance.
Before the commencement of the meeting, the wives departed to pursue their individual desires. Later that evening, she overheard Tiarri's exclamation of "An Intruder". Subsequently, Kheann and Mirrix forcibly brought Anakin to the ground and brandished their knives.
Anakin clarified that his lightsaber had been stolen. Kheann suggested to Anakin that Ashala was the culprit, and Mirrix informed him of Ashala's location in the adjacent chamber.