A kloyz (pl. kloyzn; Yiddish: קלויז) or a hesger (pl. hesgerim) was an Ashkenazi, Ottoman, or Italian Jewish house of study and worship[1] popular during the 16th to 19th centuries. It is closely related to a beth midrash, though the two are different in the fact that unlike the often-public batei midrash, kloyzn were private and often regarded as elite institutions.[2]