West Francia
Robert the Strong ( – 866) was the father of two kings of West Francia: Odo (or Eudes) and Robert I of France. His family is named after him and called the Robertians. In 853, he was named "missus dominicus" by Charles the Bald, King of West Francia. Robert the Strong was the great-grandfather of Hugh Capet and thus the ancestor of all the Capetians.