Biography
German jurist and sometime conseiller de guerre (member of the Prussian War-Council). In 1772 he became vice-president of the Justitzkollegium in St. Petersburg, Russia.
Life with Boswell
Boswell went with the Kircheisens to a party at Behmer's on July 17, 1764. Behmer was the uncle of Mlle. Schartow, a girl who was raised by the Kircheisens as a part of their family. Boswell described him as "a big, gallant Allemand".
Literature
In 1771, Behmer published Otia in otio minime otiosi, which is sometimes available via [Abebooks]. He published some other works as well.