| Diego López de Medrano | |
| Lord of Agoncillo | |
| More: | no |
| Spouse: | Dona Maria Ramirez de Medrano |
| Issue: | Juan de Medrano, Elvira López de Medrano, Aldonza Diaz de Medrano |
| Other Titles: | Lord of Velilla, La Rioja and San Martín de Berberana |
| Noble Family: | House of Medrano |
| Father: | Alvar Díaz de Medrano y Zúñiga |
| Mother: | Toda Hurtado de Mendoza |
| Birth Name: | Diego López de Medrano y Hurtado de Mendoza |
| Birth Date: | 14th century |
| Birth Place: | Logroño |
| Death Date: | 15th century |
| Website: | | module = } |