XJF129862 The Marquess of Newcastle riding on Pegasus before an assembly of the Greek Gods and receiving the salutes of earthly horses, illustration from a Riding Manual by the Marquess of Newcastle, published in Antwerp in 1658 (engraving) by Diepenbeeck, Abraham Jansz. van (1596-1675) (after); Private Collection; (add.info.: Cavendish, William, 1st Marquess (1643) and later 1st Duke (1665)of Newcastle upon Tyne (1592-1676); writer, equestrian and royalist army commander during the English Civil War; while in exile in the Low Countries he wrote the first of his two treatises on horsemanship, \'La M矇thode Nouvelle et Invention Extraordinaire de dresser les Chevaux\', published in Antwerp and engraved by Peeter Clouwet (1629-70); Pegasus, in Greek mythology a winged divine horse, sired by Poseidon, in his role as horse-god, and foaled by the Gorgon Medusa;); Flemish, out of copyright.