Early civil death records are especially helpful because they may list people for whom there are no birth or marriage records. Deaths were recorded within a few days of the event in the town or city where the person died.
Be aware that information in a death record about the deceased’s parents, birth date, birthplace, and so on may be inaccurate since the person who gave the information may not have had complete information. - extracted from BYU Family History Library
Deaths from the early years of civil registration should be searched with special care as they may give information about people born in the eighteenth century with greater detail than the parish records. Such records are especially important where parish records have been destroyed.
Before the invention of photocopies, when people requested a copy of a death record, the civil registration officials would provide a certificate or extract of the record. Death certificates could be a literal and complete transcription of the record or an extract of the same.
The Portuguese terms used to refer to these are usually: Registro de óbito, certificado de óbito, certidão de óbito, atestado de óbito, certidão verbum ad verbum.
Aos trinta dias domes de Novembro daera
de mil esete sentos sesenta e dois annos
faleceu davida presente Francisco
filho de Manoel Fernandes ede sua
molher Francisca Fernandes deste
lugar de Unhaisdevelho edeidade de
nove annos pouco mais ou menos e
foi sepultado dentro da Igreja de
S. Matheus para que conste fis este
firmo que asigno dia ora mes ut. Supra
P.e Cura Pedro Lopes Fera
On the thirtieth day of the month of November of the period
of seventeen hundred sixty two years
Francisco passed away from this present life
son of Manoel Fernandes and of his
wife Francisca Fernandes of
this place Unhais de Velho and of the age of
nine years give or take a little and
was buried in the church of
S. Matheus for the record I made this [document]
I sign day hour month ut. Supra
Father Priest Pedro Lopes Fera
For more examples of Death civil registration records click here.