Juan Chrisostomo Hurtado (1722-) & my first Spaniards?

Hello,

My name is Vanessa Lopez and this is my first post. My paternal grandmother's line was relatively easy to trace through Zacatecas and Jalisco. I worked diligently to build her family tree in preparation for an upcoming family reunion in May. Every once in a while, I like to just google an ancestor. I did just that for Juan Chrisostomo Hurtado (1722-) and to my surprise, I discovered this amazing tree, https://www.wikitree.com/genealogy/Hurtado%20de%20Mendoza-Family-Tree-11, which extended back to Spain (a first for me in all of my 7 years of research.) I would like help in any of the following ways...

Do we share common ancestors based on this (unconfirmed) wiki tree? How do you feel about wiki trees in general? I am considering opting for a pro-genealogist to confirm this wiki tree information because 1300s Spanish genealogy is way beyond my capabilities.

Are you related to me (based on the attached tree segment)? I have my DNA on Ancestry and GedMatch ready for comparison.

What kinds of records are common in Spanish genealogy? I can read Spanish, but I'm only familiar with Mexican records and history.

Thanks for reading!

-Vanessa