His father was Francisco Antonio Davila, and his mother was Rosa Maria Montemayor. He was adopted by Francisco Antonio Davila and Nicolasa Gonzalez Hidalgo
He married Rosa Quiteria de Ayala, daughter of Diego de Ayala and Nicolasa Garcia Davila.
In 1735, he requested a dispensation to marry Maria Gertrudis Cantu. It was his second marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.102.