Who's This? Greek dude I missed first time around, in Who's Who vol.I, page 5.
How you could have heard of him: Aegeus took his time and returned only in Wonder Woman #600 (2010) as a terrorist who attempts to hold Washington D.C. hostage, only to be defeated by Diana and Superman.
Example story: Wonder Woman #297 (1982) by Dan Mishkin, Gene Colan and Frank McLaughlin
Who's Next? There's a lamer Wonder Woman villain in that issue of Who's Who...