This map of Silesia is derived from that of Martin Helwig (1516-74) published in 1561 as stated in the title. It survives in just the one known example at the Badische Landesbibliothek, Karlsruhe, Germany. Helwig was a native of Silesia being born in Neisse, his diary survives in the University Library of Wroclaw. It is present day south western Poland and displays both Crakaw(Krakow) in the east and Breslaw (Wroclaw) in the centre. This Abraham Ortelius version was first published in the initial edition of the 'Theatrum Orbis Terrarum' in 1570. This example was issued in the Spanish text edition of 1588 with the pagination 54 to the verso. Karrow p. 38.1; Meurer p. 163; Van den Broecke, M. #102.