Author
- Arjāsp Umīdī al-Ṭihrānī1
- Arles1
- Arnaud, Claude, active 1660-1661.1
- Arnold Goerinus1
- Arnold-André Sittard1
- Arnulf of Bohéries1
- Arnulf of Lisieux1
- Arnulf of Orléans1
- Arrigucci family1
- Arīnī, Muḥammad ibn Najm1
- Arşı Baba1
- Asad Allāh ibn Ismāʻīl Kāẓimī1
- Asad Allāh ibn ʻAbd al-Ghaffār Nādir Māzandarānī1
- Ascanio Sforza1
- Asher ben Jehiel1
- Asiriddini Akhsikatī1
- Asmus Biersteden1
- Assembly of the French clergy1
- Ataullah Mehmet Efendi1
- Athīr al-Dīn al-Abharī1