Amyrlin Seat

In The Wheel of Time, an Aes Sedai equivalent of a Queen.

Amyrlin Seat has supreme authority in the White Tower, at least theoretically. Actually, WT's government is more of parliamentary type: The Hall of Tower has twenty-one sisters: three Sitters from each Ajah. Amyrlin's decisions can be overridden by the Hall and they can even depose Amyrlin if she has acted in secret and on her own, but this been known to happen only a few times, in fact just 3 times since the Breaking of the World.

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In The Wheel of Time, a seat in Hall of Tower that Amyrlin Seat (person) sits on.

From the Glossary of The Wheel of Time

(1.) The title of the leader of the Aes Sedai. Elected for life by the Hall of the Tower, highest council of the Aes Sedai, which consists of three representatives from each of the seven Ajahs. The Amyrlin Seat has, theoretically at least, almost supreme authority among the Aes Sedai. She ranks as the equal of a king or queen .

(2.) The throne upon which the leader of the Aes Sedai sits.