Leonor was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Lopo Dias de Sousa, who she married in AFT 1398. The place has not been found. Their six known children were Diogo Lopes (c1380-?), Violante (c1400-?), Isabel (c1402-?), Branca (?-?), Maria (?-?) and Aldonça (c1412-?).