Captain Kent the Terrible
From superman.nu: Supermanica
Captain Kent the Terrible
An alias employed by Superman during a time-journey to sixteenth-century England when, at the urging of Queen Elizabeth I, he assumes the fictitious identity of Captain Kent the Terrible, "the cruelest, deadliest pirate of all time", as part of an elaborate ploy to defeat the Spanish Armada (S No. 89/1, May 1954: "Captain Kent the Terrible!"). (TGSB)