At the beginning of the 18th century, Hungary and the Southern Netherlands are coveted by the French diplomacy. Those peripheral provinces of The Habsburg Empire oppose the centralization policy lead by Madrid and Vienna. In order to realize his dynastic ambitions, Louis XIV uses this context to destabilize these territories during the War of the Spanish Succession triggered by the death of the last Habsburg King of Spain, Charles II, the first November 1700. Louis XIV mobilizes his army and his ambassadors in the continuity of the foreign alliances « Alliance de revers » that have been conducted during centuries. The marquis des Alleurs and the president Pierre Rouillé de Marbeuf, agents of Louis XIV, half spy, half ambassadors, are respe...