Chapter

The Chapterhouses — often simply called Chapters, or Ruling Houses — of Gallifrey were the political affiliations of the various Great Houses. There were six chapters, (PROSE: The Ancestor Cell) each representing one of the founders of Time Lord society. Each Chapter had its own dominant colour, and wore robes of that colour during ceremonial occasions, such as the inauguration of a new Lord President. The most prominent was the Prydonian Chapter, whose members included more Lord Presidents (including the Doctor) than any other Chapter. (TV: The Deadly Assassin)

Its significance was closely followed by the Arcalian and the Patrex Chapters. The remaining three, the Dromeian Chapter, the Cerulean Chapter and the Scendeles Chapter were overshadowed by the first.

The heads of the Chapters were the Lord Cardinals, and the chief of these in a chapter was known as the Cardinal Prime (PROSE: Lungbarrow) Both Lenadi (PROSE: Lungbarrow) and Borusa (TV: The Deadly Assassin) served as Cardinal Prime of the Prydonian Chapter.

According to Commander Hallan, marriage was a way of strengthening the bonds between Houses and Chapters. (AUDIO: Spirit)

During the War, political upheavals and social reforms on the Homeworld led to the six Chapters' almost continual replacement as other Ruling Houses rose and fell in importance. (PROSE: The Book of the War, AUDIO: Neverland)

Chapters

 * Prydonian
 * Arcalian
 * Patrexian
 * Dromeian
 * Cerulean
 * Scendeles

Great Houses
In the fiftieth year of the War, the six Ruling Houses were
 * Dvora
 * Tracolix
 * Lineacrux
 * Arpexia
 * Xianthellipse
 * Mirraflex

Founders
According to legend there were six founders of the Chapters and modern Gallifreyan life: (PROSE: The Infinity Doctors, PROSE: The Ancestor Cell)
 * Rassilon
 * Omega
 * Pandak
 * The Other
 * Apeiron
 * and one other, possibly Eutenoyar

Ceremonial colours
Prydonians used scarlet and orange. Arcalians used green. Patrexes used. (TV: The Deadly Assassin) Dromeians used silver-grey and Ceruleans, as the name would indicate, used blue. (PROSE: Lungbarrow) The Scendeles ceremonial robes change from a light pink to a darker shade of red. (PROSE: The Ancestor Cell) The colour gold was reserved for the Gold Usher (TV: The Deadly Assassin)

Capítulos de Gallifrey