Martim was born about 1250, the son of unknown parents. The place is not known.
He died in 1313. The place is not known.
His wife was Inês Lourenço de Valadares. They were married, but the date and place have not been found. Their only known child was Martin II Afonso (c1280-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1250 |
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| Death | 1313 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | senhor de Santarém | |||||
| Nobility Title | senhor de Santo Estêvão 2° | |||||
| Nobility Title | governador de Chaves |