German physician; born at Posen Aug. 21, 1848; descendant of Aryeh Löb, who died as martyr in Posen in 1737; educated at the gymnasium of his native town and at the universities of Vienna and Berlin (M.D. 1873). In the Franco-Prussian war (1870-71) he was active as an assistant surgeon. Settling as a physician in Posen, he practised there till 1901, when he retired from practise on account of ill health and removed to Charlottenburg, near Berlin.
Landsberger took an active part in the municipal life of Posen, being for eighteen years alderman, and for one year president of the aldermanic board. For four years he was also chief physician of the Jewish Hospital.
He has written several essays for the medical journals, and is the author of "Handbuch der Kriegschirurgischen Technik," Tübingen, 1875, which book received the Empress Augusta prize.