Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Frederick ⅠⅠ" in Communities of Knowledge: Interreligious Networks of Scholars in Ibn Abi Usaybiʿa’s History of the Physicians last modified June 23, 2021, https://usaybia.net/person/780
   
      
         
            
               Frederick ⅠⅠ
               Frederick ⅠⅠ (Emperor, ‘king of the Franks’)
               https://usaybia.net/person/780
               
                  king
               
               
                  A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah
                  
                  10.83.3
                  13.63.8.1n