Now that it's Valentione's Day, I'd like to know a bit more concerning their house.
Clearly House Valentione is not one of the 4 High Houses that make up the Ishgard's flag, which begs the question(s)...

Are they even recognized as a proper noble house?

If they are, does that mean that there are many more noble houses/families than the ones on Ishgard's flag?

What kind of political power/influence can they hold compared to the major 4 ones (as well as their standing with the Holy See)?

I know that Ishgard's back-story is (mostly) shrouded in mystery given their withdrawal compared to the other city-states, but still...a few answers/opinions on the matter would be nice.