Frederick II, Duke of Upper Lorraine

Not to be confused with Frederick II, Duke of Lorraine.

Frederick II, Duke of Upper Lorraine
Spouse	Matilda of Swabia
Issue	Sophie Frederick III, Duke of Upper Lorraine Beatrice
House	House of Ardennes
Father	Theodoric I, Duke of Upper Lorraine
Mother	Richilde of Bliesgau

Frederick II (c. 995–1033), son of Thierry I of the House of Ardennes and Richilde von Blieskastel, daughter of Folmar III, Count in Bliesgau, was the Count of Bar and Duke of Lorraine, co-reigning with his father from 1019.

On the Emperor Henry II's death in 1024, he joined Ernest II, Duke of Swabia, in revolt against the new king, Conrad II. Soon they made peace and recognised the new king. Frederick died in 1033.

Frederick married Matilda of Swabia, daughter of Herman II, Duke of Swabia, and sister-in-law of Conrad. Frederick and Matilda had:

• Sophia, Countess of Bar and Pont-à-Mousson, married Louis, count of Montbéliard
• Frederick
• Beatrice, married firstly Boniface, Margrave of Tuscany, and secondly Godfrey III, Duke of Lower Lotharingia; mother of Matilda of Canossa

Sources

• Eads, Valerie (2003). "The Geography of Power:Matilda of Tuscany and the Strategy of Active Defense". In Kagay, Donald Joseph; Villalon, L. J. Andrew (eds.). Crusaders, Condottieri, and Cannon: Medieval Warfare in Societies Around the Mediterranean. Brill.
• Le Jan, Régine (2003). Famille et pouvoir dans le monde franc (VIIe-Xe siècle), Essai d’anthropologie sociale (in French). Éditions de la Sorbonne.
• Mickel, Emanuel J. (1994). "The Three Godfreys and the Old French Crusade Cycle". In Wright, Monica L.; Lacy, Norris J.; Pickens, Rupert T. (eds.). "Moult a sans et vallour": Studies in Medieval French Literature in Honor of William W. Kibler. Rodopi. pp. 273–288.
• Morby, John (1989). Dynasties of the World. Oxford University Press.
• Whitney, J.P. (1968). "The Reform of the Church". In Tanner, J.R.; Previte-Orton, C.W.; Brooke, Z.N. (eds.). The Cambridge Medieval History. Vol. V. Cambridge University Press.