Reimar Constantin von Alvensleben was a Prussian general.
Born at Eichenbarleben in the Province of Saxony, Alvensleben entered the Prussian Guards from the cadet corps in 1827. Wikipedia
Born: August 26, 1809, Eichenbarleben, Hohe Börde, Germany
Died: March 28, 1892 (age 82 years), Berlin, Germany
Awards: Pour le Mérite and Order of the Black Eagle