Duarte was the son of Pedro de Menezes and Isabel Dominges. The date and place of his birth have not been found.
His wife was Isabel de Castro. They were married, but the date and place have not been found. They had no known children.
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | 1414 | conde de Viana do Alentejo 3° |