An unexpected event occurred to give this friendly meeting at Aigues-Mortes a value which otherwise it would probably never have attained.  A year afterwards, in August, 1539, a violent insurrection burst out at Ghent.  The fair deputy of the Low Countries had obtained from the estates of Flanders a gratuitous grant of twelve hundred thousand florins for the assistance of her brother the emperor, whom his unfortunate expedition in Provence had reduced to great straits for want of money; and the city of Ghent had been taxed, for its share, to the extent of four hundred thousand florins.  The Ghentese pleaded their privilege of not being liable to be taxed without their own consent.  To their plea Charles V. responded by citing the vote of the estates of Flanders and giving orders to have it obeyed.  The Ghentese drove out the officers of the emperor, entered upon open rebellion, incited the other cities of Flanders, Ypres and Bruges amongst the rest, to join them, and, taking even more decisive action, sent a deputation to Francis I., as their own lord’s suzerain, demanding his support, and offering to make him master of the Low Countries if he would be pleased to give them effectual assistance.  The temptation was great; but whether it were from prudence or from feudal loyalty, or in consequence of the meeting at Aigues-Mortes, and of the prospects set before him by Charles of an arrangement touching Milaness, Francis rejected the offer of the Ghentese, and informed Charles V. of it.  The emperor determined resolutely upon the course of going in person and putting down the Ghentese; but how to get to Ghent?  The sea was not safe; the rebels had made themselves masters of all the ports on their coasts; the passage by way of Germany was very slow work, and might be difficult by reason of ill-will on the part of the Protestant states which would have to be traversed.  France was the only direct and quick route.  Charles V. sent to ask Francis I. for a passage, whilst thanking him for the loyalty with which he had rejected the offers of the Ghentese, and repeating to him the fair words that had been used as to Milaness.  Francis announced to his council his intention of granting the emperor’s request.  Some of his councillors pressed him to annex some conditions, such, at the least, as a formal and written engagement instead of the vague and verbal promises at Aigues-Mortes.  “No,” said the king, with the impulsiveness of his nature, “when you do a generous thing, you must do it completely and boldly.”  On leaving the council he met his court-fool Triboulet, whom he found writing in his tablets, called Fools’ Diary, the name of Charles V., “A bigger fool than I,” said he, “if he comes passing through France.”  “What wilt thou say, if I let him pass?” said the king.  “I will rub out his name and put yours in its place.”  Francis I. was not content with letting Charles V. pass; he sent his two sons, the dauphin and the Duke of Orleans, as far as Bayonne