There is some confusion 'concerning' [='regarding'] his current whereabouts.
news 'concerning' friends
(..) What else? On your son Tyrion's directive, I met with Catelyn Stark. Why? - concerning her daughters. - Hmm. - A girl. - A wildling. We could question her. You could. (..)2012 TvShow: Game of Thrones Title: The Old Gods and the New Season: 2 Episode 6