Reply To: Calling all Talmidei chachomim – can you help?

So I’ve had a chance to look in sefer otzar hagedolim, and the author, r’ naftoli yaakov hakohen, brings that he is mentioned in tosfos in the following places: yevamos 57, menuchos 88, krisus 14, yoma 48, Ri miParis quotes him regarding seder pesach in brachos 31, and among others Rav Yehudah Hachosid (an ancestor of mine) was a talmid of his. there are also a couple of other mentions in tosfos such as nidah 36, but apparently these were to’us sofrim, and a different R’ yom tov was intended.