I’ve seen people talk about actors and artists that had a terrible time.
My own would be Anne Rice. She wrote Interview with the Vampire after her young daughter died of Leukemia. Then her husband suddenly died of a brain hemorrhage. I suspect her Christian, anti-fanfic phase was a result of mental illness and manipulation from the publishers, although I don’t think she ever apologized.
Kafka was kinda lucky that he died before all that shit went down if you think about it. He would have been forced to see all his sisters be gassed to death. Plus, the Gestapo stole the works of is last year in Berlin from his girlfriend.