How would I find a Spanish ancestor's escudo de armas?

I want to find the escudo de armas that was granted to a Spanish ancestor by the King of Spain around 1580s. Can someone please help me find the appropriate archivo or whatever. Thanks. Marge V:)

Hi Marge! It's Daniel. I can help you with this. My family also has a "legit" one.

COuple Questions:

What is his name?
Family Name?
Year?
What event?

Almost all the "Altenos families of Jalisco came from powerful families and had arms like the Esparzas and ROmos.

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