Lothair I was a 9th-century Emperor of the Carolingian Empire and King of Italy (818–855) and Middle Francia (843–855). 795 – October 3, 855; died at about 60. Alive at the same time as Muḥammad ibn Musa al-Khwarizmi, Abu Nuwas, Ādi Shankara, Al-Shafi'i, and Charlemagne. Wiki link