Sadeler, Raphael (I), Venice, Johann (I), Florence, Straet, Jan van der, Schema, seu speculum principum, Main activities of a prince, Arma, Minerva as patroness of the art of war, verso lower left - stamped, Minerva in full armor as patroness of the art of war. She is surrounded by weapons (including cannons, guns, armor, military books and siege engines). In the background on the left a battle and a siege. In the background on the right a market. The print has a Latin caption explaining the importance of military skills for a prince. The first print of a five-part series on the subject of the main activities of a prince., print, prints, height 224 mm, width 280 mm, South Netherlandish, 1550 - 1600-08, print maker, printmaker, 1597 - 1597, paper, papier, engraving, engraving (printing process), etching, 1523 - 1605-11-02, intermediary draughtsman, after a drawing by, Publication (Event), Publication, publisher, uitgever, Publicatie, 1560