The Mausoleum of the Arbiter also contained the (recoverable) remains of every Sangheili that has ever been designated as the Arbiter. A total of one hundred eighty-two caskets are present, spreading far up into the ceiling. Arbiters are only appointed in times of dire need, such as the Taming of the Lekgolo, the Unggoy Rebellion, and the Human-Covenant war, making this number of Arbiters unlikely.