Heinrich Gross, writing also as Henri Gross was a German rabbi. He was a pupil in rabbinical literature of Judah Aszod. After graduating from the Breslau seminary and from the University of Halle (Ph.D. 1866; his thesis on Leibniz obtaining the university prize), he was engaged as private teacher by Baron Horace Günzburg at Paris. Wikipedia
The definitive Wikipedia entry for Heinrich Gross. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Heinrich_Gross_%28rabbi%29