Fernão Martins da Fonseca Coutinho (born 14th-century) was a Portuguese nobleman, Lord of Couto de Leomil.

[1] His parents were Esteban Martins de Leomil and Urraca Rodrigues da Fonseca.

[2] His parents were Estevão Martins de Leomil and Urraca Rodrigues da Fonseca.

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