I'm a Descendant of Rabbi Shmuel Shmelke Zacks of prauge.
If it's written that Rabbi Shmuel Schmelke Zak ABD Ostroh was a Descendant of Rabbi Shmuel Shmelke Zack of prauge, Reich wasn't his name, it's wrong - and its written that Shmuel Shmelke Zak ABD Ostroh was a Descendant of Rabbi Asher Ben Jechiel, Rash:
Does that also means that Shmuel Schmelke Zak of prauge is a Descendant of Asher Ben Jechiel, Rash? Because the surname Zack goes from father to father, right?