I am an Izquierdo also, my father was born Mexico, in a small village called (if I can spell it right) Capuljac. When I was 19 yrs old my father and I returned to visit the old village. It was there that I discovered that my Great-grandfather was from Spain. If you have anymore information post me a note, I'll check back once a month. I also have more info on our name. Thanks!