The "Corónicas" Navarras name "Ferrant Layniz et Bermun Layniz" as the two sons of "Layn Calbo". The Historia Roderici names “Fernán Laínez and Bermudo Laínez” among the “many sons” of “Laín Calvo”. The Nobiliario of Pedro Conde de Barcelos names "Fernan Lainez, Vermui Lainez, Lain Lainez…" as the children of "Lain Calvo" and his wife "D. Teresa Nuñez, hija de Nuño Rasura".