The Siege of Vān occurred in 1547 when Suleiman the Magnificent

Suleiman the Magnificent

Suleiman I was the tenth and longest-reigning Sultan of the Ottoman Empire, from 1520 to his death in 1566. He is known in the West as Suleiman the Magnificent and in the East, as "The Lawgiver" , for his complete reconstruction of the Ottoman legal system...

 attacked Persia in his second campaign of the Ottoman-Safavid War (1532–1555).

The city of Van

Van, Turkey

Van is a city in southeastern Turkey and the seat of the Kurdish-majority Van Province, and is located on the eastern shore of Lake Van. The city's official population in 2010 was 367,419, but many estimates put this as much higher with a 1996 estimate stating 500,000 and former Mayor Burhan...

 was surrounded, put under siege and bombarded. On this campaign, Suleiman was accompanied by the French ambassador Gabriel de Luetz

Gabriel de Luetz

Gabriel de Luetz, Baron et Seigneur d'Aramon et de Vallabregues , often also abbreviated to Gabriel d'Aramon, was the French Ambassador to the Ottoman Empire from 1546 to 1553, in the service first of Francis I, who dispatched him to the Ottoman Empire, and then of the French king Henry II...

. Gabriel de Luetz was able to give decisive military advice to Suleiman, as when he advised on artillery placement during the siege.