Diego Duke of Beja & Viseu

Paternal Side

• Fernando Duque De Beja Prince of Portugal 1433 - 1470  (36 years)

• Duarte King of Portugal And The Algraves 1391 - 1438  (46 years)
• ARAGON, Leonora of Abt 1402 - 1445  (43 years)

• John I of Aviz, King of Portugal 1357 - 1433  (76 years)
• PLANTAGENET, Phillipa de Lancaster 1360 - 1415  (55 years)
• Ferdinand I of Antequera, King of Aragon 1380 - 1416  (35 years)
• CASTILLA, Eleanor Leonor Urrac De Countess of Albuquerque 1374 - 1435  (61 years)

Maternal Side

• Beatriz Brites Princess of Portugal 1430 - 1506  (76 years)

• PORTUGAL, Joao of Grand Master of Santiago 1400 - Yes, date unknown
• BRAGANCA, Isabella De 1402 - Yes, date unknown

• John I of Aviz, King of Portugal 1357 - 1433  (76 years)
• PLANTAGENET, Phillipa de Lancaster 1360 - 1415  (55 years)
• BRAGANCA, Alfonso De Duke of Braganza Abt 1377 - 1461  (84 years)
• PEREIRA, Beatriz Countess of Barcellos Abt 1380 - Abt 1412  (32 years)