Scribe
- Johannes de Luxia1
- Johannes de Tossens1
- Johannes of Regensburg1
- Johannes, de Beylario1
- John Capgrave1
- John Clerk1
- John Shirley1
- John Waller1
- John de Beauchesne1
- Joseph ben Isaac Gallico1
- Juan de la Mote1
- Justinus of Master Stephanus1
- Katharinenkirche, Nuremberg1
- Katherina Mast1
- Laurentius3
- Laurenziano Leone1
- Lazarus a Parentibus1
- Leonardus Job2
- Ludovico Vicentino degli Arrighi1
- Luxeuil Abbey1