an Entity references as follows:
David Gans (Hebrew: דָּוִד בֶּן שְׁלֹמֹה גנז; 1541–1613), also known as Rabbi Dovid Solomon Ganz, was a Jewish chronicler, mathematician, historian, astronomer and astrologer. He is the author of "Tzemach David" (1592) and therefore also known by this title, the צמח דוד.