
Originally designed with FileMaker, its main reference unit is the lineage, understood as any of the family and political structures identified by Lope García de Salazar in his Libro de las buenas andanças e fortunas.
This secondary database is linked to and feeds into the main HILAME prosopographical database, enabling documentalists to identify individuals as members of recognizable lineages recorded in late-medieval Basque documentation.
The database provides information on lineages established in the former Señorío de Vizcaya (Lordship of Biscay). Although there are 133 individual entries corresponding to as many lineages, only 66 contain sufficiently extensive and consistent information to allow for meaningful graphical representation.
Each record includes about twenty fields that describe the lineage in relation to its territory and other lineages, offices and sources of income, vassal ties among its members, and other relevant data.