For the Amora

Amora

Amoraim , were renowned Jewish scholars who "said" or "told over" the teachings of the Oral law, from about 200 to 500 CE in Babylonia and the Land of Israel. Their legal discussions and debates were eventually codified in the Gemara...

 sage of the 3d generation, also an Exilarch

Exilarch

Exilarch refers to the leaders of the Diaspora Jewish community in Babylon following the deportation of King Jeconiah and his court into Babylonian exile after the first fall of Jerusalem in 597 BCE and augmented after the further deportations following the destruction...

, see: Mar 'Ukban III (exilarch)

Mar 'Ukban III (exilarch)

Nathan de-Zuzita, Jewish Amora sage of the 3d generation, whom according to Joseph ben Ḥama , is to be identified with the exilarch 'Uḳban ben Nehemiah, Joseph's contemporary , who was a contrite sinner....

 [also known as "Ukban ben Nehemiah" or "Nathan de-Zuzita"].

Mar Ukva (or Mar Ukba ; other: Mar Ukva (I) ) was a Jewish Amora

Amora

Amoraim , were renowned Jewish scholars who "said" or "told over" the teachings of the Oral law, from about 200 to 500 CE in Babylonia and the Land of Israel. Their legal discussions and debates were eventually codified in the Gemara...

 sage of Babylon

Babylon

Babylon was an Akkadian city-state of ancient Mesopotamia, the remains of which are found in present-day Al Hillah, Babil Province, Iraq, about 85 kilometers south of Baghdad...

, of the first generation of the Amora

Amora

Amoraim , were renowned Jewish scholars who "said" or "told over" the teachings of the Oral law, from about 200 to 500 CE in Babylonia and the Land of Israel. Their legal discussions and debates were eventually codified in the Gemara...

 era. He served as an Exilarch

Exilarch

Exilarch refers to the leaders of the Diaspora Jewish community in Babylon following the deportation of King Jeconiah and his court into Babylonian exile after the first fall of Jerusalem in 597 BCE and augmented after the further deportations following the destruction...

 during the days of Samuel of Nehardea

Samuel of Nehardea

Samuel of Nehardea or Samuel bar Abba was a Jewish Talmudist who lived in Babylonia, known as an Amora of the first generation; son of Abba bar Abba and head of the Yeshiva at Nehardea. He was a teacher of halakha, judge, physician, and astronomer. He was born about 165 at Nehardea, in Babylonia...

, who was also his Rabbi, but at the same time, Samuel was subordinated to Mar Ukva in Ukva's capacity as "Av Beit Din

Av Beit Din

Av Beit Din, Av Beis Din, or Abh Beyth Diyn . was the second-highest ranking member of the Sanhedrin during the Second Commonwealth period. He presided over the Sanhedrin in the absence of the Nasi, and was the chief of the Sanhedrin when it sat as a criminal court...

" - Chief of the rabbinical Sanhedrin

Sanhedrin

The Sanhedrin was an assembly of twenty-three judges appointed in every city in the Biblical Land of Israel.The Great Sanhedrin was the supreme court of ancient Israel made of 71 members...

 court, and its second-highest ranking member. He resided at Kafri city, Babylonia

Babylonia

Babylonia was an ancient cultural region in central-southern Mesopotamia , with Babylon as its capital. Babylonia emerged as a major power when Hammurabi Babylonia was an ancient cultural region in central-southern Mesopotamia (present-day Iraq), with Babylon as its capital. Babylonia emerged as...

, where his "Beth din

Beth din

A beth din, bet din, beit din or beis din is a rabbinical court of Judaism. In ancient times, it was the building block of the legal system in the Biblical Land of Israel...

" - rabbinical court - was also located. According to the Iggeret Rav Sherira Gaon

Sherira Gaon

Rav Sherira Gaon was the head of the Academy of Pumbeditha. He was one of the most prominent Geonim of his period, and the father of Hai Gaon, who succeeded him as gaon.Sherira was born in 906 and died in 1006. Rav Sherira Gaon (Hebrew: רב שרירא גאון or R. Sherira ben Ḥanina Gaon, Hebrew: רב...

, he was appointed Exilarch after R. Huna Kamma

Huna Kamma

Judah haNasi who contemporaneously was active in the Land of Israel, and was president of the Sanhedrin, located at the time in the Galilee, a position that was considered at the time the most ranked one in the Land of Israel, had asked R...

 died. In the Talmud

Talmud

The Talmud is a central text of mainstream Judaism. It takes the form of a record of rabbinic discussions pertaining to Jewish law, ethics, philosophy, customs and history....

 it is storied that he was a righteous man and used to give "Tzedakah

Tzedakah

Tzedakah or Ṣ'daqah in Classical Hebrew is a Hebrew word commonly translated as charity, though it is based on the Hebrew word meaning righteousness, fairness or justice...

" ("Charity

Charity (practice)

The practice of charity means the voluntary giving of help to those in need who are not related to the giver.- Etymology :The word "charity" entered the English language through the Old French word "charité" which was derived from the Latin "caritas".Originally in Latin the word caritas meant...

") anonymously, in order not to shame the needy he handed the charity to. As a disciple of Samuel of Nehardea, he also had knowledge in medicine

Medicine

Medicine is the science and art of healing. It encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness....

.