After the Reconquista of Lisbon (1147), the area became integrated into the Reguengos de Ribamar that included terrain that extended from the Alcântara ravine to the Laje ravine in Oeiras [REF].
In March 1382, an armada under the authority of John I of Castile entered the Tagus estuary, but was unable to crack the defenses; the force advanced inland attacking, sacking and stealing cattle [REF].