Years: 1845–1923
Primary city: Konskie
Rabbi Rabbi Yoav Yehosha Weingarten was a Polish posek who served as the rabbi of Kintzk for nearly three decades. He authored the responsa work Chelkas Yoav, which gained widespread attention for its sharp analysis and for the appended kuntres, Kava d’Kashyasa. A talmid of Rabbi Avraham Bornsztain of Sochatchov, the Avnei Nezer, his works are characterized by their profound lomdus and incisive questions, with Kava d'Kashyasa presenting 103 challenging unresolved problems in talmudic discourse.