Originally Posted by
christep
No - in a BA lounge a non-BA OW Emerald (e.g. a CX Diamond) is allowed one guest. Two guests is only in CX lounges under CX rules.
QF also will allow you to take your kids in, even if it means exceeding the guest quota, although if OW Emerald flying in J or Y they may ask you to use the J lounge instead.
Dave