Salomon was Count of Rennes and Nantes from 852 and Duke of Brittany from 857 until his assassination in 874. In 867, he was granted the counties of Avranches and Coutances, and he used the title King of Brittany intermittently after 868.

Robert the Strong was the father of two kings of West Francia: Odo 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.