Alexander Barclay de Tolly-Weymarn

Prince Alexander Magnus Friedrich Barclay de Tolly-Weymarn (, Alexander Petrovich Barklay-de-Tolli-Veymarn; December 22, 1824 – May 8, 1905), born as Alexander Magnus Friedrich von Weymarn, was a Baltic German military commander who served in the Imperial Russian Army.

Life and family He was a member of the Baltic German nobility, and the son of General Wilhelm Peter Jost von Weymarn (1793–1846) and his wife, Christina Augusta von Lueder (1803–1887). He married Marie Friederike von Seddeler in 1849 and had three children: daughters Alexandrine "Ada" Auguste Olga Barclay de Tolly-Weymarn and Marie "Mira" Georgia Augusta Barclay de Tolly-Weymarn, and son Ludwig Alexander Michael Barclay de Tolly-Weymarn.

His maternal grandmother was the sister of Prince Michael Andreas Barclay de Tolly, a very prominent military commander who was made a count in 1813 and a prince in 1815 by Alexander I of Russia. After the extinction of the original Barclay de Tolly princely line upon the death in 1871 of Prince Michael's son (Magnus Barclay de Tolly), Alexander von Weymarn was allowed to assume the title of Prince Barclay de Tolly-Weymarn in 1872, by permission of Alexander II of Russia.

Honours Russian orders and decorations Knight of the Imperial Order of Saint Anna, 3rd Class, 1849; 2nd Class, 1855; 1st Class, 1864 Knight of the Imperial Order of Saint Vladimir, 4th Class, 1856; 3rd Class, 1860; 2nd Class, 1869 Knight of the Imperial Order of Saint Stanislaus, 1st Class, 1861 Knight of the Imperial Order of the White Eagle Knight of the Imperial Order of Saint Alexander Nevsky, 1886

Foreign orders and decorations House and Merit Order of Peter Frederick Louis, 3rd Class Grand Cross of the Order of the Dannebrog, 13 December 1867 Knight of the Order of the Red Eagle, 1st Class, 7 May 1873 Knight of the Order of the Iron Crown, 1st Class, 1874 Commander Grand Cross of the Royal Order of the Sword, 19 July 1875 Grand Cross of the House Order of the Wendish Crown, with Golden Crown, 16 February 1876