デイヴィッド・ベニオフ
As an adult, he began using the pen name David Benioff when his first novel was published in 2001. Benioff is his mother's maiden name. He explained that he did this to avoid confusion with other writers named David Friedman. For legal purposes, his copyright filings from the 2010s onward list him as "David Benioff Friedman".