On 24 October 1909, Tittoni and the Russian diplomat Aleksandr Izvolsky exchanged diplomatic notes on an informal agreement, known as the Racconigi Bargain, for Russia and Italy to support each other's interests in the Balkans and in the Ottoman Empire, at the Italian city of Racconigi, Tsar Nicholas II of Russia was hosted by King Victor Emmanuel III. Italy and the Russian Empire concluded another agreement with Austro-Hungarian Empire a few days later disregarding this agreement. In April 1910, he was appointed ambassador in Paris.