Blaga Daru

Origin
Prince Blagu Dara was an interplanetary pirate, who commanded an army of outlaw forces, which used "Super-Dreadnaught" ships to conquer Europe. From his headquarters in London, Dara planned to conquer the rest of the Earth, which he considered a "puny" planet. He desired his enemy, Gale Allen, for his wife, but Allen and her ally, Jack North, commanded forces which ultimately drove Dara from the Earth.

Golden Age Appearances
Planet Comics #5, 6, 9, 11