the death of Charles's grandson, Carloman II, on 12 December 884, the West Frankish nobles elected his uncle, Charles the Fat, already king in East Francia and Kingdom of Italy, as their king. He was probably crowned "King in Gaul" (rex in Gallia) on 20 May 885 at Grand. His reign was the only time after the death of Louis the Pious that all of Francia would be re-united under one ruler. In his capacity as king of West Francia, he seems to have granted the royal title and perhaps regalia to the semi-independent ruler of Brittany, Alan I. His handling of the Viking siege of Paris in 885–86 greatly reduced his prestige. In November 887 his nephew, Arnulf of Carinthia revolted and assumed the title as King of the East Franks. Charles retired and soon died on 13 January 888. In Aquitaine, Duke Ranulf II may have had himself recognised as king, but he only lived another two years. Although Aquitaine did not become a separate kingdom, it was largely outside the control of the West Frankish kings. Odo, Count of Paris was then elected by nobles as the new king of West Francia, and was crowned the next month. At this point, West Francia was composed of Neustria in the west and in the east by Francia proper, the region between the Meuse and the Seine. Rise of Robertians After the 860s, Lotharingian noble Robert the Strong became increasingly powerful as count of Anjou, Touraine and Maine. Robert's brother Hugh, abbot of Saint-Denis, was given control over Austrasia by Charles the Bald. Robert's son Odo was elected king in 888. Odo's brother Robert I ruled between 922 and 923 and was followed by Rudolph from 923 until 936. Hugh the Great, son of Robert I, was elevated to the title "duke of the Franks" by king Louis IV. In 987 his son Hugh Capet was elected king and the Capetian dynasty began. At this point they controlled very little beyond the Île-de-France. Rise of dukes Outside the old Frankish territories and in the south local nobles were semi-independent after 887 as duchies were created: Burgundy, Aquitaine, Brittany, Gascony, Normandy, Champagne and the County of Flanders. The power of the kings continued to decline, together with their inability to resist the Vikings and to oppose the rise of regional nobles who were no longer appointed by the king but