ח Av is the yahazeit of the Chozeh of Lublin
Reb Yaakov Yitzchok ben Avrohom Eliezer HaLevi Horowitz, known as the Chozeh of Lublin or the Rebbe of Lublin, who passed away in 1815. He was a talmid of the Magid of Mezritch, Magid of Zlotchov, Reb Levi Yitzchok of Berdichev and the Rebbe Reb Shmelke of Nikolsburg. His main Rebbe, of course, was the Rebbe Reb Elimelech of Lizensk, the author of Noam Elimelech. He was one of the four top talmidim of the Noam Elimelech. (The other three were Reb Yisroel of Koznitz, Reb Avrohom Yehoshua Heschel of Apta and Reb Menachem Mendel of Rimanov. There were, of course, many other great talmidim, but these four were singled out by the Noam Elimelech and he gave them each different spiritual gifts before his passing.)
His talmidim included Reb Dovid of Lelov, Reb Yissocher Dov of Radoshitz,
Meor VeShemesh, Reb Naftali of Ropshitz, Yid HaKodosh, Bnei Yisaschor, Yismach Moshe, Reb Meir of Apta, the Zhidichover and Komarna Rebbes, Sar Sholom of Belz and numerous other great tzadikim. He also wrote approbations for Sefer Likutei Mohoran and Siddur Tefila Yeshara (Berdichiver Siddur). His seforim include Divrei Emes, Zichron Zos, and Zos Zichron.
You Will Cry On the Day I DieOn Simchas Torah the Chozeh fell from a window and hurt himself very bad. Certain opponents of the Chozeh were openly happy about this. When the Chozeh heard about this, he said: "On the day I die they will be crying". This statement was understood when the Chozeh passed away on the saddest day of the year, Tisha B'Av.
May the merit of this Holy Tzaddik keep Klal Yisroel safe and help bring Moshiach immediately AMEN!!!