Analysis of information sources in references of the Wikipedia article "Boruch Ber Leibowitz" in English language version.
His father, Harav Yaakov Moshe, was the son of Hagaon Harav Baruch Ber Leibowitz, zt"l, famed Rosh Yeshivah of Kamenitz and author of Birkas Shmuel on Shas.
But very quickly he fell ill, and on the fifth of Kislev of the year 5700, he expired...