Ethiopia according to Grifon of Flanders, Martino de Segono and Pietro Ranzano ; In the last quarter of the 15th century, hopes of an alliance with Ethiopia to outflank and surround the Turks, made this country the centre of Western powers’ preoccupations. Based on diverse levels of knowledge about Ethiopia, some unpublished or little known humanistic geographical texts inform about scholarly discussions on the geography of this country and about the tensions between clerics and secular thinkers on the subject of the 1481 Ethiopian embassy : the Supplementum Asiaticum of the Franciscan Grifon of Flanders († 1475), well versed in Arabs geographers and cartographers ; the letters to Sixtus IV (De Aethiopum situ, lingua, religione, De expediti...