Brother of Ruy and Lope Niño, Castilian notables, all killed at the Battle of Aljubarrota (1385).
Chronicle entries in which Juan Niño appears:
Crónica de D. João I, part 2, ch. 132
Brother of Ruy and Lope Niño, Castilian notables, all killed at the Battle of Aljubarrota (1385).