I saw your message & I tend to agree with you. The branch of Aguayo's I know were from Mexico & the area they lived in was Coahuila (which also included Texas; The family were hereditary governors of this area & owned the land outright, no grants; they had 2 capitals, Saltillo, Coahuila, MX & San Antonio TX, USA; There is a Padre Kino mission in San Antonio named San Jose y San Miguel de Aguayo, their family chapel), & part of the state of Durango. The family my children are desended from is Don Francisco & Dona Francisca Aguayo. He let some of his sons ride with Pancho Villa & supported him, so unfortunately he & his oldest son were asassinated about the time Pancho Villa was & all the rest of the family was scattered all over Mexico, Texas, USA & New Mexico, USA & did not have contact with each other so they couldnt be traced. My ex-husband only met 1 of his tios & that tio lived in Las Cruces NM. The funny thing was my children's 4th & 5th grade teacher is named Aguayo & even he said he didnt know much of his family except ones he grew up with. And a lot of these Aguayo's changed their names for safety.
The people here that are old to this area all say that the Aguayo & Horcasita families were the true aristocracy here & were considered royalty. I dont know if you & my children are related but who knows.