Hard to say. Sometimes stories like this take inspiration from real events but might be heavily fictionalized. We just don't have clear evidence one way or the other for 'Incident Seduction'.
Yes, 'Dangerous Beauty' is based on a true story. It draws inspiration from the life of Veronica Franco, a renowned Venetian courtesan in the 16th century. She was not only a beauty but also a talented poet. Her story shows the complex society she lived in, where courtesans had a certain status and influence, yet also faced many challenges.
To a large extent, it is. The movie takes cues from actual incidents and people related to the subject matter, but of course, some artistic liberties might have been taken for cinematic purposes.