I don't know if this is of help to anyone but I have a Victorino in my line born in Rosais. My great grandfather Manuel Victorino de Oliveira. He was married to Ana Rosalina do Carmo (also from Rosais).
My grandmother was Laura da Conceicao (Oliveira) da Cunha and she married Antonio Silveira da Cunha Jr.
I would be very interested in any information available.
I wish I had more to share but I'm just starting my search on this line.