Upvote:11
It would appear the 1814 occupation of Paris lasted for 2 months, beginning on March 31,1814, the culmination of the Battle of Paris
On March 31 Talleyrand gave the key of the city to the Tsar. Later that day the Coalition armies triumphantly entered the city with the Tsar at the head of the army followed by the King of Prussia and Prince Schwarzenberg.
...and ending on June 1, 1814, with the signing of the First Treaty of Paris signaling the official cessation of hostilities.
The Treaty of Paris, signed on 30 May 1814, ended the war between France and the Sixth Coalition, part of the Napoleonic Wars, following an armistice signed on 23 April between Charles, Count of Artois, and the allies.1 The treaty set the borders for France under the House of Bourbon and restored territories to other nations. It is sometimes called the First Peace of Paris, as another one followed in 1815.
From pp 134 of the book Securing Europe after Napoleon: 1815 and the New European Security Culture, edited by Beatrice de Graaf, Ido de Haan, Brian Vick we get a summary of the timeline (emphasis mine):
The Council had a precursor in the occupation of 1814 that included two phases: a war occupation (from the time that the Allied forces crossed the French border and seized areas around the turn of the year December 1813-March 1814) and a truce occupation (from the end of March until the Allies left on 1 June 1814)
So after the Treaty of Paris was signed 30 May,1814 the Allies withdrew on June 1, 1814.