Prydonian Chapter
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The Prydonian Chapter (also known as the Prydon Chapter) was known to produce devious Time Lords, and more than a few renegades, amongst them the Doctor.
More Time Lords from this chapter have assumed the office of Lord President than all others put together. They wore scarlet and orange ceremonial robes (DW: The Deadly Assassin). The Prydonian Academy was located some distance up Mount Cadon. (NA: Timewyrm: Revelation)