The stadholder now marched upon Groningen. This city was one of the most splendid and opulent of all the Netherland towns. Certainly it should have been one of the most ancient in Europe, since it derived its name--according to that pains-taking banker, Francis Guicciardini--"from Grun, a Trojan gentleman," who, nevertheless, according to Munster, was "a Frenchman by birth."--"Both theories, however, might be true," added the conscientious Florentine, "as the French have always claimed to be descended from the relics of Troy." A simpler-minded antiquary might have babbled of green fields, since 'groenighe,' or greenness, was a sufficiently natural appellation for a town surrounded as was Groningen on the east and west by the greenest and fattest of pastures. In population it was only exceeded by Antwerp and Amsterdam. Situate on the line where upper and nether Germany blend into one, the capital of a great province whose very name was synonymous with liberty, and whose hardy sons had clone fierce battle with despotism in every age, so long as there had been human record of despotism and of battles, Groningen had fallen into the hands of the foreign foe, not through the prowess of the Spaniard but the treason of the Netherlander. The baseness of the brilliant, trusted, valiant, treacherous young Renneberg has been recorded on a previous page of these volumes. For thirteen years long the republic had chafed at this acquisition of the hated enemy within its very heart. And now the day had come when a blow should be struck for its deliverance by the ablest soldier that had ever shown himself in those regions, one whom the commonwealth had watched over from his cradle.