This is specific to the PS1/SNES version.
I have been trying to get a generic character to turn into an angel knight by raising her stats up to exceed the listed thresholds here. She has been trained mostly as a Valkyrie, is lawful, and has gotten many kills. I worry that there is an undocumented requirement to NOT have killed many foes. I have tried killing her myself as well as letting enemies kill her, but I always end up with nothing more than a dead character.
In the past I have had my priest(ess) die and have her return as an angel knight before I could load my game. (This was always cause to load because a priest class makes for a poor front-line fighter, and I lost my revivify spell.)
What am I doing wrong? What are the real requirements to getting an angel knight without recruiting one?