Beltrán Vélez de Guevara Haro Señor de Guevara, Oñate y Leniz

Beltrán married Mencia Fernández de Ayala y Álvarez de Ceballos, daughter of Fernán Perez De Pérez de Ayala IX señor de Ayala and Elvira Álvarez de Ceballos. (Mencia Fernández de Ayala y Álvarez de Ceballos was born in 1340 in Toledo, New Castile, Spain and died in 1405 in Toledo, New Castile, Spain.)