Isaac ben Eliezer

Isaac ben Eliezer was a German rabbi who lived in Worms from 1460 to 1480.
He attended the lectures of Moses ben Eliezer ha-Darshan, whom he praised in high terms.

Sefer HaGan

Isaac wrote in German an ethical and ascetic treatise under the title "Sefer HaGan". It is divided into seven parts, one for each day of the week. Translated into Hebrew by Moses Saertels, it was subsequently printed, together with Johanan Luria's "Sefer ha-Derakah," in Prague and Amsterdam. The Hebrew translation has been twice rendered into German.