War of the Fifth Coalition and remarriage

In April 1809, Austria abruptly broke its alliance with France, and Napoleon was forced to assume command of forces on the Danube and German fronts. After early successes, the French faced difficulties in crossing the Danube and suffered a defeat in May at the Battle of Aspern-Essling near Vienna. The Austrians failed to capitalise on the situation and allowed Napoleon's forces to regroup. He defeated the Austrians again at Wagram, and the Treaty of Schönbrunn was signed between Austria and France.
Britain was the other member of the coalition. In addition to the Iberian Peninsula, the British planned to open another front in mainland Europe. However, Napoleon was able to rush reinforcements to Antwerp, owing to Britain's inadequately organised Walcheren Campaign. He concurrently annexed the Papal States because of the Church's refusal to support the Continental System; Pope Pius VII responded by excommunicating the emperor. The pope was then abducted by Napoleon's officers, and though Napoleon had not ordered his abduction, he did not order Pius' release. The pope was moved throughout Napoleon's territories, sometimes while ill, and Napoleon sent delegations to pressure him on issues including agreement to a new concordat with France, which Pius refused. In 1810 Napoleon married the Austrian Marie Louise, Duchess of Parma, following his divorce of Joséphine; this further strained his relations with the Church, and thirteen cardinals were imprisoned for non-attendance at the marriage ceremony. The pope remained confined for 5 years and did not return to Rome until May 1814.

First French Empire at its greatest extent in 1811

  French Empire

  French satellite states

  Allied states

Napoleon consented to the ascent to the Swedish throne of Bernadotte, one of his marshals and a long-term rival of Napoleon's, in November 1810. Napoleon had indulged Bernadotte's indiscretions because he was married to Désirée Clary but came to regret sparing his life when Bernadotte later allied Sweden with France's enemies.