Juan Alonso de Guzmán, 1st Count of Niebla
Don Juan Alonso de Guzmán y Cabrera, 1st Count of Niebla or Juan Alonso Pérez de Guzmán y Osorio was the first Count of Niebla. He was a descendant of Alonso Pérez de Guzmán.
The Counts of Niebla, existed from no later than 8 June 1369 by the second marriage of Juan Alonso de Guzman y Cabrera, also named Juan Alonso de Guzman y Osorio, who was married twice, first to Juana Enriquez, and then Beatriz de Castilla y Ponce de Leon, an illegitimate daughter of Henry II of Castile.
