The Cygnus Black Cloth is the Cloth of Black Cygnus in Saint Seiya. It is one of the Black Cloths kept on Death Queen Island, and used by the evil Black Saints. Unlike the other Saints, the Black Saints and their Cloths are not aligned with Athena.
Black Cygnus trained to be a Black Saint on Death Queen Island (like all Black Saints) by an unknown master. The Cloth was likely kept on Death Queen Island until a man strong enough, and wicked enough, to wear it was found. Like all Black Saints, Black Cygnus was an evil man who fought with rather deadly moves, and intense loyalty to Ikki. Black Cygnus first appeared in volume 3 of the manga, as the one who takes the shoulderplates of the Sagittarius Gold Cloth. Black Cygnus eventually fights Hyoga a second time, but is taken out by Hyoga’s ice. Having been left one arm free, he tears out his own eye, teleporting it to Ikki, to reveal Hyoga’s move. He was left half dead from his wounds; the Silver Saints were tricked into killing three of the Black Saints at least.