Jean de La Valette was a French nobleman and military leader, best known for his role as the Grand Master of the Order of Saint John during the Great Siege of Malta in 1565. Born in 1494, he became a prominent figure in defending the island against the Ottoman Empire, showcasing his strategic skills and leadership. Under La Valette's command, the Knights of Malta successfully repelled the siege, which solidified the Order's presence in the Mediterranean. His efforts not only preserved Malta but also enhanced the reputation of the Knights Hospitaller, marking a significant moment in European history against Ottoman expansion.