being, according to others, a long popular and royal belief tradition. The legend first appeared in the Crónica de Portugal de 1419 and was accepted as fact until Alexandre Herculano reexamined the event, judging it a "pious fraud", in his investigation in the middle of the 19th century. See also Siege of Lisbon Timeline of Portuguese history References Citations Sources . External links 1139 in Europe 12th century in Portugal Ourique 1139 Battles of the Reconquista Battles involving the Almoravid dynasty Conflicts in 1139 County of Portugal 12th century in Al-Andalus