Rabbi Yoel ben Shmuel Sirkis (1561-1640), aka the "Bach", named after his landmark commentary on the Arba Turim, was one of the greatest rabbis and scholars of all time. He was also my 11th generation great grandfather on my mother's side, which makes me a distant cousin of Rabbi Shlomo Carlebach, of blessed memory, who was a great-grandson of the Bach.
In the following memorable clip, here's Rabbi Shlomo telling a classic story about the Bach, which I enjoy telling to my guests and grandchildren in our Succa. It's really moving, and I'm sure you'll enjoy it. Moadim L'Simcha!