Board Thread:Lore Discussion/@comment-10561605-20130820164006/@comment-112.210.15.45-20140316045450

Based on the Argument between Khar and Sky, im with Sky the only true dragonborn was Tiber Septim, Miraak, and the Dovakhiin. The Alessian dragonborns didn't actually learn words of power and the last known direct blood relative to Tiber was his grandson, Pelagius I. All other Septim rulers were from Tiber's other relatives