House Tracolix was an ambitious Newblood Great House, arguably prone to recklessness and over-concern with fashion.

The House was given to furthering its interests in the universe by employing agents from other species, which could range from elegant dandies (PROSE: The Book of the War) to Sontarans. (AUDIO: The Eleven Day Empire)

By the time of the War in Heaven, Tracolix had risen to become one of the six ruling houses, alongside Xianthellipse, Arpexia, Dvora, Mirraflex and Lineacrux, filling the space in the social hierarchy that had previously been filled by the six houses; Arcalian, Cerulean, Dromeian, Patrex, Prydon and Scendeles. (PROSE: The Book of the War)

In the 25th year of the War, a Fifth Wave Tracolix cadet interrupted Robert Scarratt's speech at the Gauntlet. (PROSE: The Brakespeare Voyage)

A representative of Tracolix attempted to ally with Zaleena's warrior-women on Venus. (PROSE: T.memeticus: A Morphology)

In the 50th year of the War, Tracolix entered into a pact with House Lolita (PROSE: The Book of the War) and hired the Seventy-Ninth Sontaran Assault Corps. House Lolita betrayed them during their combined invasion of the Eleven-Day Empire. (AUDIO: The Eleven Day Empire, The Shadow Play)

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