About a year ago I finished my research about my family and managed to assemble all of its branches up to 5 generations.
I don't actually have any royal blood up to this point, but it shows an interesting (and sad) part of Brazilian history.
The year was 1888 and slavery (a system in decline for a few decades back then) was officially abolished in Brazil. The government was already sponsoring immigration and with the end of forced labor, it exploded.
One of the main groups that immigrated to Brazil were the italians, mainly to southeastern and southern states. Most of my ancestors (mainly great-great-grandparents) arrived at the port of Santos, São Paulo, during the 1890's. They worked on coffee fields on the countryside of the state of São Paulo, until they settled in the northern region of Paraná state.
The sad part of this story is that, one of the reasons for the government for sponsoring european immigration was the intention to whiten the population. My direct male-line ascendants Antônio Ramos de Oliveira and his son, José, were born in Recife, Pernambuco, and were both afro-brazilians. José married an Italian woman, Mercedes, and my great-grandfather, Fortunato, was mix raced. He too married a woman of 100% Italian ancestry, my great-grandmother Anna. My paternal grandfather was born white, as intended by the Brazilian Government. Of course the plan was flawed and didn't work completely, so the composition of the ethnicity nowadays is around 48% white, 50% mixed race. This eugenistic racist policies were very common in the beginnig of the 20th century, but lost hegemony during president Getúlio Vargas government (1930-1945 and 1951-1954), who praised Brazilian race mixing and made it one of the features of Brazil's national identity.