Great kings......
So you know
Un gran rey is a great king.
And un rey grande is a great big king.
So what about - Grandes reyes - Great kings?
and
Reyes grandes - great big kings.
Right?
Gracias.
4 Answers
I thought gran = great, usually referring to the character/virtue of the modified noun; while grade(s) = big, usually referring to the size of the modified noun(s). Es verdad?
I would like to hear some more advance or native speakers to share their knowledge here.
Maybe because I don't see that clear what's the difference between:
Great king and great big king.
A great king is known for the many great things he has done.
A great big king is known for wearing clothes of a very large size.
This question has puzzled me completely.
What's supposed to be a great big king, apart from this;

Wait, I'm not joking. What's actually a Big King?
Because in Spanish, a Rey Grande normally means a Good King, but it can be understood as a Fat King, or as a Tall King. Lacking context, I can't tell what's a "rey grande".
Adjectives placement is far from being a mathematics issue. Adjectives take their meaning when they are part of a sentence, not for being before, or after the noun.
So if you wanted to say:
They were two great kings in the story of Spain, you could say:
Fueron dos grandes reyes en la historia de España
and I can't see any difference in saying:
Fueron dos reyes grandes en la historia de España
Maybe because I don't see that clear what's the difference between:
Great king and great big king.
Could you explain that, please?
I remember something else I once read: certain Spanish words have slightly different meanings when used before or after a noun, and "grande" was one of them. When used before a noun, it means "great", when used after a noun, it means "big." The word "grande" is special in that it becomes "gran" when used in front of a word. This website also verifies this point.
So at least for me, now it all makes sense now. In other words, your example is right: "great kings" = grandes reyes.