Production / publication: [Strassburg : Heinrich Knoblochtzer, after 13 Sept. 1480]Description: 10 unnumbered pages ; 22 cm (4to).General note: Title and imprint suggested by ISTC ( The Incunabula Short Title Catalogue). Printed in Gothic letter, with 30 lines to a page. Citation/References note: Incunabula Short Title Catalogue, ia01181000Ownership note: Acquired for the Library of the Museum of St John from the antiquarian bookseller Martin Breslauer. Binding note: Rebound by the bookseller Martin Breslauer for the Order of St John in green morocco with gold-tooled single-fillet border.Subject(s): Knights of Malta -- History -- 15th century | Rhodes (Greece : Island) -- History -- Siege, 1480Summary: First edition of Grand Master Pierre d'Aubusson's letter to the German Emperor Frederick III, in which he describes the course and ultimate failure of the Turkish siege of Rhodes from 23 May to 7 August 1480. On receiving the letter, Frederick III had it published as a telling piece of crusading propaganda, with its vivid descriptions of Turkish naval and military power and its emphasis on the heroism of the Knights of St. John in their struggle to defend their Aegean island strongholds. On all the evidence of the Latin style, the real author of the letter was the Grand-Master's secretary Guillaume Caorsin, who also wrote at the time a fuller account of the siege, widely published in Europe in 1481.