Ramirez in Ayo/Arandas

I've hit a brick wall with a RAMIREZ line I'm currently researching. I'm looking for the parents of Nicolas RAMIREZ and his spouse Maria de la Concepcion MORALES/MORONES/MORANTES. They lived in “las Cruces” in the parishes of Ayo el Chico and Arandas.

To the best of my knowledge, their children are as follows:

Juana RAMIREZ b. 1731

Juan RAMIREZ b. 1734

Thoribio RAMIREZ b. about 1739; married 1759

Ana de la Luz RAMIREZ b. 1741

Nicolás Antonio RAMIREZ b. 1744

Any assistance given would be greatly appreciated.

Glenn