Dukes of Aveiro - The Dukes of Aveyro (Spanish Title)

The Dukes of Aveyro (Spanish Title)

When Peter of Lencastre, 5th Duke of Aveiro died in 1673, his niece Maria de Guadalupe of Lencastre was finally recognised by the Portuguese King as Duchess of Aveiro in 1679, on condition that she return to Portugal although she was married to the Spanish Duke of Los Arcos. Her husband opposed this; she divorced him, returned to her homeland and regained the House of Aveiro and their estates.

While the divorce was pending, King Carlos II of Spain tried to prevent her return to Portugal by granting her, in 1681, the Spanish title of Duchess of Aveyro (Spanish spelling). This title belongs today to the Spanish Carvajal family and was never recognised in Portugal.