Author
- Jaghmini2
- Jalal Al-Din Al-Khabazi2
- Jaʻfar ibn Khaḍir Janājī2
- Jerome2
- Jewish Community of Carpentras, France2
- John Chrysostom2
- Juana I of Castile2
- Julius II2
- Juvenal2
- Kamal al-Din ibn al-Humam2
- Kamalākara Bhaṭṭa2
- Kamalākarabhaṭṭa2
- Kauṇḍa Bhaṭṭa2
- Kingdom of England2
- Konrad III. von Soltau2
- Kulaynī, Muḥammad ibn Yaʻqūb, -941?2
- Leo X2
- Lodovico Castelvetro2
- Maffeo Vegio2
- Magha2