I did that too and found the same thing. However, the fantasy character's name might have been inspired by the male name Ifrael (also appears as Efrael), which is claimed here - http://www.jochnowitz.net/Essays/JudeoProvencal.html - to be a form of Israel. Also, there's an Efriel (female) in the Phillipines on Friendster. I couldn't find any info on Efriel, though. Maybe you have some?