References for Anna Félix de Zúñiga
J. Valverde Fraikin:
Titulos nobiliarios andaluces.
Granada, 1991
J.W. v.Imhof:
Genealogiæ Viginti Illustrium In Hispania Familiarum.
Leipzig, 1712
Vargas-Zuniga:
Titulos de Castilla.
Hidalguia, 195?