Nicholas Francis, Duke of Lorraine

Nicholas Francis , also known as Nicholas II, was briefly Duke of Lorraine and Duke of Bar for a few months in 1634, spanning the time between the abdication of his older brother and his own resignation. He was therefore Duke during the invasion of Lorraine by the French in the Thirty Years War.

Nicholas Francis was the youngest son of Duke Francis II of Lorraine and his wife, Christina of Salm. Born on the feast of Saint Nicholas, he was named in his honour. His sister was Marguerite of Lorraine, the Duchess of Orlans and wife of Gaston, Duke of Orlans.

Source: Wikipedia