Hugh Capet built his power from the Robertian family's lands and ecclesiastical connections around Paris and Orléans. After his father Hugh the Great died in 956, he gradually secured recognition as duke of the Franks and emerged as one of the strongest magnates within the West Frankish kingdom. His relationship with the Carolingian king Lothair alternated between cooperation and rivalry, shaped partly by contacts with the Ottonian rulers to the east.

The death of Lothair's son Louis V in 987 opened a succession contest. With support from Archbishop Adalbero of Reims and other leading figures, Hugh was elected king instead of the Carolingian claimant Charles of Lorraine. The election reflected judgments by nobles and churchmen, rather than an automatic transfer of a unified national state. Hugh soon arranged the coronation of his son Robert as associate king, strengthening hereditary succession within a monarchy still formally dependent on acceptance by the great men.

Charles continued to challenge the new dynasty and established himself at Laon before his capture in 991 removed the most immediate threat. Hugh nevertheless exercised limited direct control outside his own lands. Powerful counts and dukes governed substantial territories with considerable independence, while the Crown relied on negotiation, local alliances and the support of bishops and monasteries. Royal authority was a claim to precedence and legitimacy as much as effective government across the whole kingdom.

Disputes over the archbishopric of Reims brought Hugh into conflict with papal authority after the removal of Arnulf, who had supported Charles. The controversy exposed the politics of church appointments and the limits of the king's freedom to settle them. Hugh died in 996, leaving Robert to succeed him. His territorial achievements were modest, but securing his family's crown established the Capetian line. Its later growth should not obscure the limited authority with which he began.