Jalisco & Teocaltiche

In talking to our older relatives, we heard comments that there were Land Grants given to families from Spain (hundreds of years ago) for land in Mexico, including Jalisco. Is this true, and if so, are there any records of this ?

Also, are there any records in Mexico of Spanish people crossing into Mexico (through the Atlantic and Gulf) via Veracruz or some other port ?

Thanks, Ken Tejeda