Alonso Velasco Bernal

Hi everyone,

I've been doing some research on Alonso Velasco Bernal, but I can't seem to find any documents that mention his children. Are there any later chronicles that mention them? Everyone seems to identify at least two sons, Bernabé and Francisco. My question is, how do we know they are the sons of Alonso Velasco Bernal and Ana Fuentes Flores?