Board Thread:Lore Discussion/@comment-82.37.42.60-20150801112513/@comment-17114085-20150801120827

Most likely no. Uriel, like all the Septim Emperors after Tiber, were not Dragonborns but only descendent from a Dragonborn. As far as I know it was never explained by Bethesda one way or the other, but there is a difference between the Last Dragonborn/Miraak/Tiber Septim/Reman Cyrodiil and Alessia/all the Septim Emperors. None of them seem to have the ability to use the Thu'um nor absorve Dragon souls. I personally call them Dragonblooded, not Dragonborns.