R. Avigdor ben Isaac Kara (Cara, d. 1439), rabbi, kabbalist, and poet, was of German origin. It is uncertain whether the name Kara indicates, as some think, that he was a descendant of R. Joseph Kara, or whether it is a reference to his expert knowledge of Scripture (Mikra). His father, R. Isaac Kara, met a martyr’s death. Kara is the author of the elegy Et Kol ha-Tela’ah asher Meza’atnu to commemorate the sufferings which overtook the Jews of Prague on the last day of Passover 1389, as a result of an accusation that they had desecrated the Host. This elegy is recited by the Jews of Prague during the Minhah service on Yom Kippur. His descendants include R. Abraham ben Avigdor.
R. Abraham ben Avigdor (d. 1542), rabbi and author, served, for 20 years, as the rabbi of Prague. One of his pupils was R. Abraham Jaffe, the father of R. Mordecai Jaffe. In 1534 R. Abraham and the famous shtadlan R. Joseph (R. Josel mann) of Rosheim, framed 23 takkanot designed to adjudicate an inter-communal dispute in Bohemia and to restore harmony in the community. After the expulsion of the Jews from Bohemia in 1541, Abraham composed the selihah beginning “Anna Elohei Avraham.” recited in the Polish ritual on Yom Kippur. According to David Gans, R. Abraham had a knowledge of “all the seven sciences.”