Rabbinical authority. Meir ben Izsak Eisenstadt (Maharam Esh) served as a dayan (judge) in Sachtschewar, Posen, (now in Poland), and then as rabbi in Szydlowiec, Poland. He went to Germany and settled in Worms where he headed the yeshiva. When Worms was taken by the French in 1701 he moved to Prossnitz as rabbi. From 1711 to 1714 he returned to Szydlowiece but then moved to Eisenstadt (now in Austria) (adopting the name of the town) serving as rabbi of the Seven Communities.
Eisenstadt’s yeshiva attracted students from far and near and he greatly influenced the nature of the community. An authority on rabbinical law, he was consulted by rabbis from Turkey, Germany and Italy. He was the author of responsa and other works of rabbinical literature.