Bom dia!
I came across the recently accomplished studies of genealogist André Claeys, who has studied the history of about 20 families in Flanders that emigrated to Portugal, the Açores, Brazil... - starting 600 years ago. Here a biography of André Claeys on the web site of the Açores government: http://www.bparah.azores.gov.pt/html/bparah-arquivo+regional-docume...
A conservative estimate is that there are 30,000 living direct descendants from these families across the Portuguese world.
This can concern families called Leme, da Terra, Dutra, da Rosa, Goulart...
Claeys worked with Portuguese and Brazilian academics in order to complete their own research by inventorizing, for the first time, the old archives of the city of Bruges - a source that is is almost exclusively in old Dutch or Latin.
The research published by Claeys is also in Dutch.
I'll try progressively to establish on Geni the oldest connections that are researched and documented by André Claeys. This should, hopefully, deliver some interesting new connnections for everyone!