Rav Issamar Leifer Bishtiner Rebbe Av Beis Din Bustyahaza

He succeeded his grandfather Rav Mordechai of Nadvorna in Bishtina where he opened a yeshivah. He was of Rav Yisroel Chaim Freidman of Rachuv author Likkutei Maharich. He was murdered martyred by the nazis and died al kiddush Hashem HYD.