I was attracted to this book, noticing that it contained an account of Queen Anne of Denmark (d. 1619). Although Anne was "queen" in name only, being the spouse of King James VI&I, in the NPA scheme of things she is of great interest from the point of view of the character types of her illustrious children, especially Charles I.
The hapless Charles, being pretty clearly either an NP or NPA− type, had the P trait. Since he didn't get it from his sanguine, non-perfectionist father (the son of the unfortunate Mary Queen of Scots and the dapper Lord Darnley), he must have gotten the trait from his mother. So, Anne was likely either NP, NPA+ or NPA−.
We had earlier surmised that Anne, coming from a Punctilious habitancy, was probably an NP type, and the vignette in this book tends to support this. Anne was regarded as intelligent, strong-willed and a force to be reckoned with in her clashes with her husband's entourage... somewhat reminiscent of Catherine of Aragon (also NP) a few generations earlier.
The author states that Anne has often been unjustly written off as a "stupid woman" but her research shows that just the opposite was true... which is what we had suspected all along.