His correspondents include the English antiquaries William Camden, Sir Henry Spelman, Sir William Boswell, Abraham Wheelock, Sir Simonds D'Ewes, James Usher, Patrick Young, John Morris and the Danish antiquary Ole Worm.
Jóannes Patursson | Thomas Joannes Stieltjes | Joannes Gijsen | Joannes Florentius a Kempis | Joannes |