Regarding Coronation Locations:
According to this website (in Portuguese)http://portugal1143.wordpress.com/2008/10/25/a-subida-ao-trono/
there was never a Coronation Ceremony in Portugal; the new king was "acclaimed" as king after the death of the old king. Portuguese kings would wear crowns, but there was no formal ceremony to actually crown them.
According to the article, some Portuguese kings inquired with the pope or other monarchs about crowning ceremonies; while such a ceremony was approved by the pope, it was never performed, and Portugal maintained "acclamation" as the way of introducing a new king.
I can't guarantee that the information on this blog is correct, but it would point into the direction of deleting all Portuguese sites from the "Coronation Locations" connection.