Strejc used description by of Iceland by Dithmar Blefken (1607), work of David Fabricius (1616) based on Blefken's work and the map and description from the 1590 atlas Theatrum Orbis Terrarum by Abraham Ortelius which was based a map by Iceland bishop Gudbrand Thórlaksson.
From the 1630s, the Blaeu family issued their work under a similar title, Theatrum orbis terrarum, sive, Atlas Novus.
Ortelius (in Theatrum Orbis Terrarum) placed a crescent-shaped island in the traditional location of Mayda with the name "Vlaenderen".