Anna van Ertborn (The widow and heir of Joannes Steelsius)
Anna van Ertborn was the widow of Joannes Steelsius and ran the print shop in Antwerp after Joannes's death in 1562 until 1576. She is identified in printer's imprints as "viduae & haeredum Ioannis Stelsij" (widow and heir of Joannes Steelsius).
For information on this and other books printed by Van Ertborn, see the List of books.