He was then appointed Field Inspector General of Artillery at Stavka .
A special commission launched an investigation on the matter and in January 1916 , Grand Duke Sergei had to resign as head of the artillery department .
Grand Duke Sergei was then appointed Field Inspector General of Artillery at Stavka .
A special commission launched an investigation on the matter and in January 1916 , Grand Duke Sergei had to resign as head of the artillery department .