Isabel of Avis was the donatário at the first half of the 15th century, receiving a new foral, during the reign of Manuel I of Portugal (1510) [REF].
In the following decade, John of Lancaster was given the title of the first Marquis of Torres Novas, along with the Duke of Aveiro (which were both extinguished in 1759, following the attempted regicide of Joseph I, associated with José Mascarenhas da Silva e Lencastre) [REF].