Avigdor lived in Vienna, and from there administered the religious affairs of the Jewish population of Austria.
Of his writings, we possess only a commentary on the Pentateuch and the five Megillot, which still exist in manuscript.
[1] The most prominent scholars of Germany often applied to him for advice on difficult ritualistic problems, theoretical or practical, and attached great importance to his decisions.
He had also distinguished pupils, among whom was the eminent Rabbi Meir of Rothenburg.
This biographical article about an Austrian rabbi is a stub.