He was born circa 1746. His father was Francisco Lopez de Jaen, and his mother was Maria Agustina Longoria. His father owned Camargo 12 grant.
He married Angela Petra Regalado Peña, daughter of Jose Salvador Peña and Antonia Narisca Torres on 14 Feb 1779 in Mier. He was 33 years old, and the bride was 19 years old.
Francisco Lopez de Jaen, head of household, español
Maria Agustina Longoria, wife, española
Maria Francisca Lopez de Jaen, daughter, española, 12 years old
Jose Manuel Lopez de Jaen, son, español, 10 years old
Jose Benito Lopez de Jaen, son, español, 9 years old
Jose Rafael Lopez de Jaen, son, español, 8 years old
Jose Francisco Lopez de Jaen, son, español, 7 years old
Jose Vicente Lopez de Jaen, son, español, 6 years old
Juan Jose Lopez de Jaen, son, español, 4 years old
Jose Fermin Lopez de Jaen, son, español, 2 years old
Jose Santiago Lopez de Jaen, español, 14 years old