The holder of the PoA is her son in law who is a judge and a QC. It was set up ages ago and was activated with a witness signature from her doctor.
She now tells me that she is being taken to view a "retirement home" and that the Duchess is sending Estate Agents round while she is out on Wednesday

Powerless here and furious

Naked greed is an ugly thing. Not one of her kids or grandkids has gone near her since all this started.