Briseis Kentauriis, Anarch First Class and Holy Vestul (7th August 843 BCE- 30th October 2001) was a female composite of a human and equine and a prolific former member of the Menagerie of Fear. She was the sister of Darius and Xerxes Kentauriis, the current head of the Menagerie, and was a victim of the terrorist attacks on Castle Nacres.
Briseis Kentauriis was created alongside eight other composite organisms in 843 BCE, in Ancient Greece. This event is often referred to as the Gene Split. The following are the names of the organisms created during this time, including her:
These nine creatures roamed the ancient world for centuries, before becoming an organized group. This was the initial formation of the Menagerie.