Saint Vincent of Saragossa is the patron saint of Lisbon. And even of vintners and vinegar-makers.
He was jailed, tortured and martyred for his faith.
According to legend, ravens protected his corpse from being eaten by vultures until his followers could find his body. His body was then taken to a place called Cape Saint Vincent. He died around 300 AC.
800 years later, the first king of Portugal, King Alfonso I, ordered to exhume the body and be shipped and brought to this monastery and church, Igreja de São Vicente de Fora or Monastery of São Vicente de Fora.
Now why in the world vintners and vinegar-makers want him to be their patron saint, I still have no idea.