A Bessarabian German, he was a son of Carol Schmidt, who was serving as mayor of Kishinev when he was born, and Maria Cristi.

The Society, led by Krupensky and Schmidt, received funds from Russian nobles and organized terror attacks in Bessarabia against the Romanian troops.

Alexander Schmidt and Aleksandr Krupensky published numerous brochures and interviews in Paris and London in which they tried to prove the Russian character of Bessarabia.

They led a delegation of Russian politicians, landowners and nobles to the 1919-1920 Paris peace conference that strongly argued against the international recognition of the union of Bessarabia with Romania.

[10][11][12] After failing to prevent the unification of Bessarabia with Romania, Schmidt settled in the Ukrainian Soviet Socialist Republic.