הרב קלונימוס קלמיש שפירא

Kalonimus Kalman Szapiro was the Grand Rabbi of Piaseczno, Poland, who authored a number of works and was murdered by the Nazis during the Holocaust. He is best remembered for a series of homilies on parshah that were delivered almost every Shabbat during the time he spent with his students in the Warsaw ghetto between the years 1939 and 1942. Shortly after the final entry in this series of meditations, the entire community in the ghetto was sent to the gas chambers in Treblinka. This work is collected under the title Esh Kodesh.