Juan was the son of unknown parents. The date and place of his birth have not been found.
His wife was María Enríquez de Mendoza, who he married in 1431. The place has not been found. They had no known children.
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | señor de Monzón de Campos y de Cabia |