Fra' Emmanuel Marie des Neiges de Rohan-Polduc (18 April 1725, in La Mancha, Spain – 14 July 1797, in Valletta, Malta) was a member of the wealthy and influential Rohan family of France, and Prince and 70th Grand Master of the Order of St. John from 1775 to 1797.

[1] Following the death in 1773 of Grand Master Manuel Pinto da Fonseca, Rohan was considered a potential successor, but Francisco Ximénez de Tejada was elected instead.

[2] Rohan sought to win the respect of the people of the island of Malta, and he became a popular Grand Master.

On 21 June 1777, he elevated the village of Żebbuġ to the status of city, naming it Città Rohan.

It was rebuilt as Fort San Lucian in the 1870s, but it still retains Rohan's coat of arms on the façade.