So, if we're talking about real friends, it would be easy to say that the Duke of Westminster and the Prince of Wales are friends
The Duke of Westminster's mother is godmother to the POW so he has known the family literally all his life
The Duke of Westminster is godfather to Prince George
The POW was an usher at the DOW's wedding
The POW is godfather to the DOW's baby daughter
They have been seen together at the football etc etc
It would be hard to come up with this sort of evidence for a relationship between the POW and TC. Yes, they have been photographed together but so have thousands of other people been photographed with the POW as part of his working life
I would love to know what the evidence is for a friendship between them . . .