From Halopedia, the Halo wiki
The Throne of Woe is a throne capable of communicating with its user and producing Unggoy by unknown means.
The Throne of Woe was discovered by the low ranking Deacon Yapyap on Installation 00. After finding the throne, Yapyap lead a rebellion against the Banished. The throne has a mind of its own and is capable of communicating with Yapyap. The throne often tells Yapyap that the unggoy are the rightful rulers of the Ark, and that with it they can make the galaxy tremble. Yapyap has gotten the throne to produce more unggoy by arguing with it.
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