"The villagers are mindless brutes. They understand nothing else."

Tavius is a male Human and member of the royal house within the Tower City-ship on the Lord Protector's Planet in the Pegasus galaxy. He was the son of the Lord Protector and a brother to Mara.

In the far, distant past, at least one Ancient became an ancestor in Tavius's family line, passing down the Ancient Technology Activation gene to him. (SGA: "The Tower")

Tavius conspired with Otho to end his father's reign early. In exchange for the title of Lord Protector, Tavius would give Mara to Otho in marriage. However, Otho broke their agreement when he was given an Ancient Technology Activation gene therapy vial from Lt. Colonel John Sheppard. Instead of ascending to the throne himself, Otho took his place.

Meanwhile, Dr. Rodney McKay, in the catacombs below the tower, drained the Zero Point Module powering the chair and ended any future rule by the Lord Protectors. When Sheppard and Beckett managed to escape with Mara's help, Beckett locked him up again. Presumably he was charged for his crimes and sent to prison afterwards. (SGA: "The Tower")