Jean Parisot de Valette, 49th Grandmaster of the Knights Hospitaller (born 1495)

Fra' Jean "Parisot" de (la) Valette was a French nobleman and 49th Grand Master of the Order of Malta, from 21 August 1557 to his death in 1568. As a Knight Hospitaller, joining the order in the Langue de Provence, he fought with distinction against the Turks at Rhodes. As Grand Master, Valette became the Order's hero and most illustrious leader, commanding the resistance against the Ottomans at the Great Siege of Malta in 1565, sometimes regarded as one of the greatest sieges of all time.

Grand Master is a title of the supreme head of various orders, including chivalric orders such as military orders and dynastic orders of knighthood.

The Order of Knights of the Hospital of Saint John of Jerusalem, commonly known as the Knights Hospitaller, is a Catholic military order. It was founded in the crusader Kingdom of Jerusalem in the 12th century and had its headquarters there, in Jerusalem and Acre, until 1291, thereafter being based in Kolossi Castle in Cyprus (1302–1310), the island of Rhodes (1310–1522), Malta (1530–1798), and Saint Petersburg (1799–1801).