Menachem Mendel Auerbach

17th-century Austrian rabbi and commentator. He studied in the yeshiva of R' Yoel Sirkes (Bach) in Krakow, eventually serving in that community as Dayan. His main work is "Ateret Zekenim", a commentary on Shulchan Aruch of which only the part on Orach Chaim has been published, appearing in most standard editions of Shulchan Aruch.