Duke of Aveiro

Duke of Aveiro was - related to the city of Aveiro - a Portuguese title of nobility to a royal duchy, which was created in the 15th century by King John I of Portugal for his youngest son, John.

A second ceremony will take place in the 16th century for João de Lencastre ( 1501-1571 ), a son of Jorge de Lencastre, Duke of Coimbra, in turn, was an illegitimate son of King John II of Portugal. The name of the ducal family, Lencastre or Lancastre, was borrowed from the wife of John I, Philippa of Lancaster, a daughter of John of Gaunt, the founder of the house of Lancaster.

Dukes of Aveiro

After José de Mascarenhas was involved in the conspiracy Távora, let Sebastião José de Carvalho e Mello, Marques de Pombal him executed on behalf of the king; the ownership of the house Aveiro was confiscated.

• Portuguese nobility