Is that... Trioculous from the Vader's Glove young adult book? Palpatine's bizarre cloned son who's obsessed with finding's Vader's glove so he can shoot Force lightning or something?
Iirc, he's not even Papa Palpatine's real son - he's a separate three-eyed mutant who claimed to be Palpatine's son as a way to grab power post-Endor. The real Palpatine's son was also a three-eyed mutant, but his third eye was in the back of his head, and his name was Triclops.
I guess people aren't very subtle with what they name their kids in Star Wars.