Gabriel Brea, has a B.A. in History (UAB) and is Master in Regional and Population Studies (Demography) (UAB) and for the European Doctoral School of Demography (Max Planck Institute for Demographic Research-La Sapienza Università di Roma). He is currently enrolled in the Doctorate Programme in Demography at UAB. Gabriel Brea is specialised in data mining of large demographic databases. He was member of the “Five Centuries of Marriages” project and is presently taking part in projects on historical civil population registers.