Del Viento

Del Viento, known as his Sith alias Sin Valor, was the son of Al Viento and a Jedi who infiltrated the New Sith Imperium during the Sith Insurrection to investigate the disappearance of Bratak Dar. Though he failed to locate Dar, he continued his espionage of the New Sith Imperium.

Behind the scenes
Del Viento was originally created by Dmitri Valentine to serve as his Sith Lord on the Dark Council on TheStarWarsRP.com's fifth timeline, as he did not wish to use Geist Weiss. However, in the end, Valentine decided not to use Del Viento and instead created Stern Stark, otherwise known as Darth Nichts.

Del Viento is Spanish for "of the wind". Viento's Darth name would have been Darth Ventus, Ventus being Latin for "wind".