(MaHaRSH”A). Chidushim Mi’Masecheth Nidah [Halachic and Aggadic novellae and on Tractates Nidah and portion of Nedarim]

The Maharsh”a’s super-commentary is indispensable to a proper understanding of Tosaphoth, the medieval French commentary to the Talmud. R. Abraham Isaiah Karelitz (author of Chazon Ish) was known to stress this as did R. Chaim Soloveitchik of Brisk (according to family oral testimony.) The Maharsh”a, R. Samuel Edels (1555-1631), was unusually referred to by his mother-in-law’s name. A wealthy woman, she supported the scholar and his disciples for a period of twenty years (1585-1605). See EJ, Vol. VI, cols. 363-4.