Author
- Aaron Mosheh Ponṭremoli1
- Abd al-Rahman al-Sufi1
- Abraham Catalano1
- Abraham Khalfon1
- Abraham Kohn1
- Abraham ben Isaac Lattes1
- Abu al-Hariri1
- Abu l-Fath1
- Abū Bakr ibn Ismāʻīl Shanawānī1
- Abū Isḥāq Ibrāhīm Muṣannif1
- Aharon Mosheh ben Tsevi Hirsh1
- Aharon ben Yitsḥaḳ Gerish1
- Ahmad ibn Muhammad ibn Kathīr al-Farghānī1
- Ahmed ibn Nasir1
- Akiva ben Joseph1
- Al-Khwarizmi1
- Al-Larí1
- Al-Mu'azzam Isa1
- Al-Ḥusayn ibn al-Ḥasan Jurjānī1
- Alfonso X of Castile and Leon1