Thassad II was the last Na-Totambu High King of Hammerfell.[2] Thassad died in Sentinel, due to natural causes. He was described as being keen and prudent by N'Gasta. The death of Thassad II lead to the Hammerfell Civil War, where his son A'Tor fought against the Forebears, with success,[3] but was later defeated when Tiber Septim, along with the Imperial Legions, started their Conquest of Hammerfell and defeated A'Tor and the Crowns.[3][2][4][5]