Shalom !

I'm looking for info on the ancestry (parents, grand parents and
so on) of the chozeh of Lublin, Yaakov Yitzhak Horowitz. Also his
siblings, children, grand children... Do you know where I can find
it? Thank you very much!

I am also interested in the same about the Holy Jew, Yaakov Yitzhak
Rabinowicz! Is there a website where I can find it?

Claire Sztern, Paris, France