He presided over the important synod at Tribur in 895 and accompanied the king to Italy in 894 and 895, where he was received with great favor by Pope Formosus.

[citation needed] Hatto retained his influence during the entire reign of Louis the Child and on the king's death in 911 was prominent in securing the election of Conrad, duke of Franconia, to the vacant throne.

He was accused of complicity in a plot to murder Henry, who in return ravaged the archiepiscopal lands in Saxony and Thuringia.

[1] Hatto died on 15 May 913, one legend saying he was struck by lightning, and another that he was thrown alive by the devil into the crater of Mount Etna.

His memory was long regarded in Saxony with great abhorrence, and stories of cruelty and treachery gathered round his name.