Angela dal Moro (1500s, also known as Zaffetta) was a well-known Venetian courtesan, who also modelled for Titian.
The “Catalogo di tutte le principal et più honorate Cortigiane di Venetia” is a list of some 212 prostitutes, where they lived, and their prices.
In ancient Venice prostitution was considered a necessary evil, where more harm would come from a ban than from a de facto acceptance