DanG, I knew there was going to be a test.

4th post, page 1;
I've just reviewed the glossary of term in Cecil A. Hewett's "English Historic Carpentry" and he doesn't list prince post in the list of posts depicted in the book.

I've just reviewed the book "Timber Buildings in Britain" by R.W. Brunskill and he lists a princess post as a post between the queen post and the eave of a queen post truss....