In Brazil when it was a colony and later when it was an empire, I will give you some citations and sources:
"This article examines the African population baptized in the parish of
Conceição da Praia in the city of Salvador, during the first half of the eighteenth
century. This period is characterized by the substantial increase of the slave trade in
Africa, notably West Africa, generically called mines, which replaced the West African
Central (generically called Bahia Angolas). Although Salvador primarily as scale of the
slave trade to the region of the mines, this is the largest consumer of slaves from Africa
at the time, the city of Bahia was the great African city of Portuguese America in the
period. Lack of books marriage and death becomes even more valuable time these
records, which show the strong presence of women (in opposition to the dominant
model of demographics African slave) and the unusual participation of African slaves as
masters of other African slaves. Finally, the town of Praia da Conceição was preferred
by the seafarer as living and working conditions, including working in the Atlantic
market of captives."
Source (then click in Baixar este arquivo PDF) (use an online translator to translate the pages 56 to 60)
"In May 17th, 1788, was buried in this grave a slave named João João, owned by our slave Ignácio dos Santos.
"In March 29th, [17]89 was buried in this grave a slave owned by our slave Damásio de Camorim, called Maria.
Source:
https://www.gazetadopovo.com.br/voz...-escravos-intrigam-historiadores-brasileiros/
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You can use an online translator to read the source above too.
About sons of slaves becoming nobles the biggest example are the sons of Chica da Silva (
Francisca da Silva de Oliveira 1732-1796).