Kletsk (, originally known as Klechesk, , , ) is a city in the Minsk Region of Belarus, located on the Lan River. In 2015 it had 11,237 inhabitants. History The town was founded in the 11th century by the Dregovichs, who erected a large fort and a tribal centre there. In the 14th century the town became part of the Grand Duchy of Lithuania and then part of the Polish–Lithuanian Commonwealth in the wake of the Polish–Lithuanian Unions. In the 1506 Battle of Kleck, the Polish-Lithuanian forces under Michał Gliński defeated the Tartar armies and saved the town from being pillaged. Soon afterwards, the town became a property of the Radziwiłł magnate family, who started to attract Jewish settlers to the area. The earliest known mention of the local Jewish community is a document dated 5 September 1522, issued by King Sigismund I the Old of Poland. In it, the monarch awarded for three years to Isaac Jesofovitch, a Jew of Brest, for the sum of 300 times sixty grosz a lease of the inns and other sources of revenue in Kletsk. The next mention of the Kletzk community, as it was known in Yiddish, is found in a document dated 21 January 1529, which imposes military duties on its inhabitants, as well as on those of other towns. On 15 June 1542 the boyar Grishko Kochevich brought suit against Zachariah Markovich, a Jew of Kletzk, the latter's oxen having broken into Grishko's field and injured the growing grain; the court awarded to Grishko twelve "ruble groschen" damages. A census taken in 1552-55 shows that the Jewish householders lived chiefly on Wilna street, on the Sloboda, and owned gardens in the suburbs. Kletzk is mentioned in the assessment on the Lithuanian communities in 1566, and from its small proportionate assessment it appears that the community was not important at that time. In 1586 the town became the capital of Radziwiłł's ordynacja, which sparked the gradual development of the town into a regional centre of commerce. By the end of the following century the number of Jews grew significantly; the town was also one of the notable centre of Calvinism, sponsored by the Radziwiłł family. The first rabbi of Kletzk was Judah ben Löb, who also had under his jurisdiction the community of Mechit. He was succeeded by Michael ben Meïr Eisenstadt, who in turn was followed, about 1762, by