@herbgrower,
I think not the same nose, and noses are important to a portrait painter.
Interesting painting..
I'd be looking up roman catholic cardinals as well of popes in likely years, which you probably have been doing already. I used to somewhat know their garb, but that recognition of mine was was a long time ago.
A favorite painting of mine that I got to see in person -

Innocent X, by Diego Velasquez