[1] It is a collaborative effort by a small group of expert genealogists in Lisbon, with over 3 million individuals (living and deceased) and 177,000 family names in the database.

[2] Geneall uses a nobility pedigree structure which arranges individuals into descendants of five historic European sovereigns; namely Ferdinand I of Castile and León, William the Conqueror, Hugh Capet, Charlemagne and Afonso I of Portugal.

[3] The site comprises historical and contemporary influential people primarily, such as monarchs, nobles, distinguished statesmen and eminent artists, as well as their descendants.

Since late 2016, and as a result of an attempt to raise funds for the maintenance of the database, most of the features that were once open to the general public have been closed and now require a paid membership to access.

It originated from the database created when Luís Amaral started a collaboration with the newspaper O Independente at the request of the then director Paulo Portas.