Meanwhile his elder son, Charles Edward, was growing up, and the hopes of the party were fixed on his future. His father wished him to learn the art of war, so in August 1734 he was sent to join a Spanish army under his cousin, the Duke of Berwick,[19] who was engaged in the campaign against Austria, which brought the crown of Naples to the Spanish Bourbons. Charles, then not quite fourteen, took part in the siege and capture of Gaeta, a fortress in Campania, and accompanied Don Carlos in his triumphant entry into Naples as king on August 9th. The Prince won much credit for his conduct in the field, but this was the end of his experience of war, and his campaign had lasted only six days. His father was anxious to extend his military education, but France and Spain in turn declined to allow him to serve with their armies. Even the Emperor, about to make war on the Turks in 1737, refused to allow the young prince to accompany his army. European potentates were unwilling to receive Charles Edward even as a visitor. The Venetian minister in London was ordered to quit England on twenty-four hours’ notice, because his Government had shown civilities to the Prince on a visit to Venice. The British Government was too vigilant to hoodwink, too strong to offend. Peace reigned throughout Europe: Jacobite activity was dormant both in England and in Scotland: the royal exiles were isolated at Rome, and it seemed as if all hope of a Stuart Restoration had been abandoned. [Sidenote: The Mission of Glenbucket.]