Deborah Feldman is an American-born German writer living in Berlin. Her 2012 autobiography, Unorthodox: The Scandalous Rejection of My Hasidic Roots, tells the story of her escape from an ultra-Orthodox Jewish community in Brooklyn, New York, and was the basis of the 2020 Netflix miniseries Unorthodox.

Satmar is a Hasidic group founded in 1905 by Grand Rebbe Joel Teitelbaum, in the city of Szatmárnémeti, Hungary. The group is an offshoot of the Sighet Hasidic dynasty. Following World War II, it was re-established in New York.