Emma of France was daughter of Robert I of France

Robert I of France

Robert I , King of Western Francia , was the younger son of Robert the Strong, count of Anjou, and the brother of Odo, who became king of the Western Franks in 888. West Francia evolved over time into France; under Odo, the capital was fixed on Paris, a large step in that direction...

 and Aelis. In 921 she married Duke Rudolph of Burgundy

Rudolph of France

Rudolph was the Duke of Burgundy between 921 and 923 and King of Western Francia from thereafter to his death. Rudolph inherited the duchy of Burgundy from his father, Richard the Justiciar...

 who was crowned king 13 July 923, at Saint-Médard de Soissons. She was very politically active and an army leader. The marriage produced a son, who died young. She died in 934, after having helped her husband stop the revolts of several vassals. Her family is known as the Robertians.