Robert Nisbet Bain, 1911 Encyclopædia Britannica, Volume 20… (1911)
“ Osterman stood at the height of his power, and the French ambassador, La Chetardie, reported to his court that “it is not too much to say that he is tsar of all Russia.” Osterman's foreign policy was based upon the Austrian alliance. He had, therefore, guaranteed the Pragmatic Sanction with the deliberate intention of defending it. Hence the determination of France to remove him at any cost. Russia, as the natural ally of Austria, was very obnoxious to France ”
