In 1552, Lorraine was invaded by France, his mother's regency was terminated and Charles was removed from Lorraine to France, to be raised at the French royal court in accordance to the needs of French interests.[2] According to Julio Alvarotto, envoy of Ercole II d'Este, Duke of Ferrara, Charles paid for a masque involving pageant ships with sails of silver cloth, designed by Bartolomeo Campi, at the wedding of Mary, Queen of Scots, and Francis, Dauphin of France, on 24 April 1558.[3] During the pageant he danced with his future wife, Claude of France.[4] In 1559, they were married and he was allowed to depart to Lorraine and take control of his domain.
The reign of Charles is regarded as a great age of peace and prosperity for Lorraine. He pursued a policy of neutrality between France and The Holy Roman Empire, as well as during the French Wars of Religion. He founded the University of Pount-a-Mousson[de].[5] He also expanded his realm by the incorporation of Pfalzburg from George John I, Count Palatine of Veldenz, in 1590, and tried to conquer also Lützelstein, though George John I's widow, Anna of Sweden, managed to negotiate a truce.
In 1590, Charles broke his policy of neutrality and allied himself with the French Catholic League because he, as a Catholic, could not accept Henry of Navarre as king of France.[6] In his peace with Henry in 1594, he married his son to Henry's sister Catherine de Bourbon.
Dundas, Iara Alejandra (2018). "Honneurs et applaudissements: celebrating the first Jesuit saints in seventeenth-century France". In Frost, Christian; Browne, Jemma; Lucas, Ray (eds.). Architecture, Festival and the City. Routledge. pp.63–80. ISBN9780429778049.
von Friedeburg, Robert; Morrill, John, eds. (2017). Monarchy Transformed: Princes and their Elites in Early Modern Western Europe. Cambridge University Press.
