Tristan Nestina was a clone of Sith Lord Darth Neyhos, created by the Galactic Empire in the year 5 BBY. He was created using genetic material from the ancient Sith Lord on the planet Korriban. Using this as their template, they grew several clones on Kamino. Only one clone survived. Much like his genetic template, the clone was very strong with the force. As soon as he was old enough, he began training under the tutelage of the cruel Cael Barnost—who was secretly Sith Lord Darth Nero. For the first five years of his life, all the clone knew was the brutal training at the hands of Barnost.