Frugo Coruss was a human Mandalorian in charge of the Tal Kyr'am duels and the slave master of most of the slaves on Mandalore. Coruss gained possession of Kadrian Kolar on 55 ABY after a Mandalorian transporter had brought the Zabrak youngling from Iridonia due to the Mando'a involvment in the Iridonian's war and they're secret plans to use Zabrak as slaves, Kadrian was the trial. He forced Kadrian into fighting in the duels and serving him personally as his servant. Kadrian was taught new ways to kill and special moves to be able to defeat enemies quicker. Little did he know that that would lead to his demise. On 57 ABY, Kadrian revolted against Coruss and managed to kill him using simple force techniques and the moves that had been taught to him.