Yissachar Dov Rokeach (I), (1851 – 30 October 1926), was the third Rebbe of the Belz Hasidic dynasty. He was the second son of Rabbi Yehoshua Rokeach (the second Rebbe of Belz), and served as the third Belzer Rebbe from his father's death in 1894 until his own death in 1926.
Read more about Yissachar Dov Rokeach (I): Personal Life, Rabbinical Career, World War I, Rebbes of Belz