Fourteen Charters of Robert I of Dreux (1152-1188)
Robert I of Dreux, third surviving son of Louis VI of France, is a little-known figure. The causes of this obscurity lie in part in the fragmentary and dispersed nature of the sources on Robert but also in the lack of interest which historians have shown regarding both him and the baronial dynasty which he founded. Indeed, no significant work on the counts of Dreux and Braine has appeared since the publication, in 1631, of André Duchesne's antiquarian history of that family. Numerous broader studies of the Capetian monarchy mention Robert in passing, because of the cession of Dreux to him by Louis VII and because of his aborted conspiracy, in 1149, to seize the throne; but it is symptomatic of the state of the scholarship on him that the first event has consistently been misunderstood, while the second is so poorly documented that judgments have ranged from calling it a major crisis for the monarchy to dismissing it as a trivial episode, with inadequate evidence for either view.
Lewis, Andrew W. "Fourteen Charters of Robert I of Dreux (1152-1188)." Traditio 41 (1985): 145-179.