I'm writing a novel. Although right now it's nothing but family trees, characters profiles, and tepid plot ideas. I'm a big Gilded Age/Victorian Era fan. That's the period I'm writing in. I was wondering if it's wrong to use real people, but change their names, and dates. Say I wanted to use Caroline Astor in my book, but I changed her name to Minerva Hartley, but I used events where the reader new who the character was based on. Or, if it's not the main character, and I allowed to use real people for support?