[hobbes78]

Not very well known? It was even the subject of a TV series some years ago!

https://arquivos.rtp.pt/programas/alves-dos-reis/

[joaomacp]

I'm portuguese and had never heard of it. That TV show is from 2001, so already a bit old. Otherwise it's not a very talked-about story.

[pcardoso]

I'm in my early 40s and I remember when it was aired, but younger people were probably watching kids TV at the time.

There were some other similar stories that made it to the TV, like Dona Branca, Capitão Roby or Ballet Rose.