Shmuel-Leib Yankelevich Medalia (born 1890, date of death unknown) was the chief rabbi

Chief Rabbi

Chief Rabbi is a title given in several countries to the recognized religious leader of that country's Jewish community, or to a rabbinic leader appointed by the local secular authorities...

 of Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

 for a brief period in 1943. He was known among Chabad hasidim as Shmuel Leib Paritcher, for his birthplace of Paritch, Belarus, where he was born in 1890. He is an alumnus of the original Yeshiva

Yeshiva

Yeshiva is a Jewish educational institution that focuses on the study of traditional religious texts, primarily the Talmud and Torah study. Study is usually done through daily shiurim and in study pairs called chavrutas...

 of Tomchei Temimim

Tomchei Temimim

Tomchei Temimim is the central Yeshiva of the Chabad-Lubavitch Hasidic movement...

 in Lyubavichi

Lyubavichi

Lyubavichi is a rural locality in Rudnyansky District of Smolensk Oblast, Russia.-History:The village is known to have existed in the former Polish-Lithuanian Commonwealth since at least 1654 . In 1784 mentioned as a small town , then a possession of the magnate Lubomirski family...

, and later served as mashgiach

Mashgiach

In Judaism, a Mashgiach is a person who supervises the kashrut status of a kosher establishment.A mashgiah may supervise any type of food service establishment, including slaughterhouses, food manufacturers, hotels, caterers, nursing homes, restaurants, butchers, groceries, or cooperatives...

(in various branches of the yeshiva.