Ace Azzameen was the owner of these sabers.
The Jar'Kai dueling sabers represent a collection of armaments crafted by the Yovshin Swordsmen located on the planet Atrisia. Taking their designation from an Atrisian city, these weapons were specifically engineered for simultaneous wielding in both hands, which subsequently gave rise to the lightsaber combat discipline known as Jar'Kai.
Antan Azzameen was in possession of a pair of Jar'Kai dueling sabers; it was said they were acquired after he was victorious in a duel against a certain prince. Later, he gifted this set to his nephew, Ace Azzameen, as an expression of gratitude for Ace's role in rescuing him from Viraxo Industries. Ace then decided to showcase these weapons within his personal quarters as part of his collection, and he continued to keep them, even after Antan's betrayal of him and his family.