Viscounts of Oliveira Viscondes de Oliveira Created by Mary II, Queen of Portugal Decree date 11-03-1842 First holder Marcelino Máximo de Azevedo e Melo, 1st viscount of Oliveira do Douro * 1794 Records #1 Holders Family filter On/Off 1 Marcelino Máximo de Azevedo e Melo, 1st viscount of Oliveira do Douro * 1794 Corrections and Updates To suggest a correction or an update. Click Here
