His father, Issachar Bärmann by name (died August 23, 1675), was the son of the Talmudic scholar Isaac Cohen of Borkum. And the name "Behrends" was adopted by Liepmann in honor of his father. His first wife, Jente (died 1695), was a daughter of Joseph Hameln, president of the congregation.
His second, Feile (died 1727), a daughter of Judah Selkele Dilmann.
His honorable position is lauded by Mannasseh ben Israel in his Hope of Israel. Behrends frequently used his influence in favor of his coreligionists. Behrend"s daughter Genendel became the wife of the chief rabbi of Prague, David Oppenheim.
She died at Hanover June 13, 1712.
Behrend"s services as president of the congregation, in his endeavors to preserve the congregational cemetery, and to secure a special rabbinate and other privileges for Hanover, were valuable in the extreme. In 1683 Duke Rudolph August appointed him chief supervisor of the bleacheries of his community in the Harz.
He stood in close relation to a number of princes, assisted Talmudic scholars, and established a "bet ha-midrash" in his own house. The fate of Liepmann"s two sons Gumbert and Isaac is related in a family "megillah", published by Jost in the second volume of the Jahrbuch für die Geschichte der Juden.
