Luthor the Noble
From superman.nu: Supermanica
Luthor the Noble
An alias employed by Lex Luthor when, after having journeyed through the time-space barrier to Krypton at a time prior to its destruction, he poses as "a cosmic champion for good" from the planet Marlat as part of his bizarre scheme to marry Lara and thereby become the father of Superman (S No. 170/2, Jul 1964: pts. I-II—"If Lex Luthor Were Superman's Father!"; "The Wedding of Lara and Luthor!").