The information in this book is intriguing Nellie, but for me it poses more questions. I am now trying to understand part of the religious aspect rather than the political dimension.
According to the author, Richard II was told by the Archbishop that he could not be anointed twice (p. 64). Then, on page 65 this tenet is reiterated - in a different context. On p 67 it is stated that James I was anointed. The context and use of the title James I indicates that this refers to James' second coronation in England. Similarly for the English coronation of Charles II. A second coronation and anointing for these kings seem anomalous as, in a footnote on page 65, it is stated that Scottish Kings had been anointed after Robert the Bruce broke the 'English yoke'.
I wonder if it is a second anointing within the same church which is not allowed, or a second anointing for the same nation, as Kings/Queens are anointed King/Queen of nation 'x'. Obviously some monarchs have had two coronations. In each of the cases I have mentioned the second coronation has been conducted by a separate church, in a separate country making the person a monarch of a second nation.