On 21 July 1914, the German Ambassador to Austria-Hungary Heinrich von Tschirschky (pictured) met with the Austro-Hugarian Minister of Foreign Affairs Leopold Count Berchtold. The two men discussed Italian policy towards Austria-Hungary.
Visit of the German Ambassador in the Imperial and Royal Ministry of Foreign Affairs. Vienna, 21 July 1914.
The Imperial German Ambassador during today’s visit said that his government had been informed that Marquis di San Giuliano was in great excitement with regard to the intended step of Austria-Hungary against Servia.
But he—Tschirschky—recently had a conversation with the Duke of Avarna [the Italian Ambassador to Austria-Hungary], who had expressed his conviction that the Italian government would loyally fulfil its duties as an ally in the quarrel between Austria-Hungary and Servia, and would stand on Austria’s side, even if the public in Italy objected and raised its voice to the contrary.
Source: 1919 Austro-Hungarian Red Book, with minor edits.