Klausenburg, also known as Sanz-Klausenburg, is a Hasidic dynasty that originated in the Transylvanian city of Cluj-Napoca (German: Klausenburg, Hungarian: Kolozsvár), today in Romania. At the behest of Rabbi Yekusiel Yehudah Halberstam, Klausenburger Rebbe from 1927–1994, the movement was split into two separate movements after his death, headed by his two sons. The Sanz-Klausenburger Hasidim are located in Borough Park, New York City, while the Sanzer Hasidim are based in Kiryat Sanz, Netanya, Israel. There are also followings in Jerusalem; Stamford Hill, London; Antwerp; and Union City, New Jersey.