Haha I didn't take that of wiki. That is my assumption that he is a member of the Royal Guard. There you go, I said the word, "assumption", hope that makes everyone feel better. Also, I agree with you that Grand Fisher was a douche, but that's not the reason that led me to believe he was a former captain. First of all, if his wife was a captain, she wouldn't have lost to Grand Fischer. Second, when Shinji said that he sensed some really powerful reiatsu that he DIDN'T recognize, that's what made me to believe it. Anyways, an assumption is still an assumption.
I think the point is you should've said it was an assumption on your part the first time, instead of stating things like it's fact.