Vizier
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A vizier was a high-ranking advisor to a monarchy in some Eastern cultures. The Doctor encountered several viziers, both on and off Earth.
The First Doctor encountered Kublai Khan's vizier at Khan's palace. (TV: Marco Polo)
The Fifth Doctor encountered the Sudanese vizier. (AUDIO: The Destroyer of Delights)
The Third Doctor encountered the Sclaponian Grand Vizier. (PROSE: Island of Death)
The Eighth Doctor encountered the glass Vizier of Fortalice. (PROSE: The Scarlet Empress)
Bernice Summerfield also encountered an individual who called himself the Vizier, whilst on Perfecton. (PROSE: Oh No It Isn't!)
