I thought that if Charles & Camilla were married at the time he became King then she would automatically be Queen?
Was there ever a chance of that not happening?
There was some questioning as to the legality of the marriage at the time with regard to the ability of a future monarch to enter a civil marriage, and this led to a report being commissioned which presumably set out the exact legal position
I say "presumably" because Charles had this report sealed for his lifetime, so the result is yet another thing we can't know