| Frederick Duke|
Duke of Upper Lorraine
| May 1026|
Matilda of Tuscany
| Theodoric I, Duke of Upper Lorraine|
Sophie, Countess of Bar, Beatrice of Lorraine, Frederick III, Duke of Upper Lorraine
Frederick I, Duke of Upper Lorraine
Cunigunda of France, Wigeric of Lotharingia
Frederick II, Duke of Upper Lorraine Wikipedia
Frederick II (c. 995–1026), 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 soon after.
He married Matilda of Swabia, daughter of Herman II, Duke of Swabia, and sister-in-law of Conrad. They had three children:Sophia, countess of Bar and Pont-à-Mousson, married Louis, count of Montbéliard
Frederick, his successor
Beatrice, married firstly Boniface, margrave of Tuscany, and secondly Godfrey III, Duke of Lower Lotharingia; mother of Matilda of Canossa