I think this is complicated rather than sinister but ...isn't there a simpler way ? POA sort of (perhaps unnecessarily) freaks me out a bit .
One of the other executors ,who hadn't realised I was also an executor,instructed a firm (not solicitors but they specialise in probate ) to apply .The grant was to be in her name and for her sole benefit - which I think is just a legal term ,I don't think she could run off with the assets .The assets are ,in any case ,being left to the surviving wife .But to have my name added I have to sign a POA.
@mumblechum ??