[Dengar]

The English version Light Novel goes up to volume 13.

Spoiler for stuff that happens in the volumes leading up to that:

So while she has suffered great humiliation for quite a while, she has long since bounced back from that and basically went from hero to hero rob them blind. Her current whereabouts are unknown but it's believed that she's with other church-related insurgents, including Armor Guy.

I know the story up until they meet the old guy's mentor in Raphtalia's home country.