A chatelaine could refer to the person (usually a woman who ran the household) or the accessory (a belt clip that held keys and whatnots that she might need in the daily running of the household)
We’ve lost the snazzy decorations, but your friend with the carabiner full of keys and a Swiss Army knife and a flashlight and a bottle opener and all the other shit you might need? Same thing
YOU may have lost the snazzy decorations, but MY carabiner has a little charm of Batman dangling from a line on it.
