Any mods installed? Baldurdash game text update springs to mind as a likely candidate.

Just the Official Patch, the Baldurdash Fixpack, and the Game Text Update.

It could be the game text update. Could you provide a link to the game text update? Thanks!!!

Even though this was debated before it could very well be the very same Jon Irenicus, even though we said it is unlikely he was ever married, it is possible that he was. John was obviously a decent elf and at some point he changed, and was driven somewhat insane for a drive for power. John as an elf is possibly quite old and the we know little of his life before the Tree of Life story line. So it is possible.

Tanova does sound familiar in BGII but I doubt they are the same unless the Tanova in BGII is actually an abomination created by an experiment by Jon gone awry to bring his wife back to life.

It also possible that if he was married that his love with Ellesime occurred after his wife's death, keeping his sanity intact just a little longer.

It is possible if one tries hard enough to think of possible links.

I know for a definite fact that without any MODs or BaldurDashing, etc., it is definitely spelled Jon Icarus. Icarus was Jon's "working title" before BioWare changed it to Irenicus. Apparently, they weren't all too sure about the Ellesime/Tanova bit, either. Yes, Tanova is indeed in BG2--she's the Mage in Bodhi's place who's more troublesome than Bodhi herself. It seems to me that BioWare decided to wash their hands of the whole "Centeol Affair / Married to Tanova" bit, as there's not a single reference to them in BG2.