The Dragon Black Cloth is the Cloth of Black Dragon and his Brother 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 Dragon and his Brother trained to be Black Saints on Death Queen Island (like all Black Saints) by an unknown master. The Cloth was likely kept on Death Queen Island until the men strong enough, and wicked enough, to wear it were found. Like all Black Saints, Black Dragon and his Brother were evil men who fought with rather deadly moves, and intense loyalty to Ikki. Black Dragonfirst appeared in volume 3 of the manga, as the one who takes the breastplate of the Sagittarius Gold Cloth. Black Dragon’s Brotherfirst appears in volume 4 of the manga, during the fight with Shiryu. Black Dragon and his Brother eventually fight Shiryu, but both are eventually defeated. They were left half dead from the wounds; the Silver Saints were tricked into killing three of the Black Saints at least.