House of Aviz

Cadet Branches
House of Braganza
Counts of Barcelos, Neiva,
Ourém and Arraiolos
Marquises of Vila Viçosa
Dukes of Bragança and Guimarães
Issued from Afonso, illegitimate son of João I of Portugal
House of Coimbra
Lords of Montemor-o-Velho
Dukes of Coimbra
Issued from Pedro, 3rd son of João I of Portugal
House of Aviz-Beja
Lords of Covilhã and Moura
Dukes of Beja and Viseu
Issued from Fernando, younger son of Duarte I of Portugal
House of Manoel
Lords of Salvaterra de Magos
and Atalaia
Counts of Atalaia
Issued from João Manoel, Bishop of Ceuta and Guarda and illegitimate son of Duarte I of Portugal
House of Lencastre
Marquises and Dukes
of Torres Novas
Dukes of Aveiro
Issued from Jorge de Lencastre, illegitimate son of João II of Portugal

Personal Arms
Duarte I of Portugal
as Heir to the Throne
2nd (eldest surviving) son of João I of Portugal
Henrique the Navigator
Duke of Viseu
4th son of João I of Portugal
João of Portugal
Constable of Portugal
Lord of Reguengos de Monsaraz, Colares and Belas
5th son of João I of Portugal
Fernando the Holy Prince
Lord of Salvaterra de Magos and Atouguia
6th son of João I of Portugal
Afonso V of Portugal
King of Portugal
2nd (eldest surviving) son and heir of Duarte I of Portugal
Arms as pretender to the throne of Castile
Fernando of Viseu
Duke of Viseu and Beja
3rd (2nd surviving) son of Duarte I of Portugal
Progenitor of Beja branch