Lokog was of low birth, but captained his own privateer ship in the hopes, that eventually he will be able to gather enough money to leave that life behind and start a House of his own.
In 2154, however, Lokog was infected with the metagenic virus that spread throughout the Klingon Empire. With the loss of his cranial ridges, he lost his standing and all of his belongings within the Empire. He spent the following years working on the edges of the Empire, like most of his fellow QuchHa', and eventually he managed to acquire another crew and the ship SuD Qav.
In October 2163, Lokog and his crew raided a Lorillian freighter, killed most of its crew, took their shipment of duranium and sold the survivors as slaves. (ENT - Rise of the Federation novel: Tower of Babel)
After Lokog's failed attempt to build fame and fortune by selling Ware drone fleets to the QuchHa' rebels in 2165, he was hunted down and killed by the Klingon Defense Force. (ENT - Rise of the Federation novel: Live by the Code)