Marlborough had thus at last succeeded in drawing up the whole left wing of his army beyond the Nebel, and was about to press forward with it, when he was called away to another part of the field by a disaster that had befallen his centre. The Prince of Holstein-Beck had, with eleven Hanoverian battalions, passed the Nebel opposite to Oberglau, when he was charged and utterly routed by the Irish brigade which held that village. The Irish drove the Hanoverians back with heavy slaughter, broke completely through the line of the Allies, and nearly achieved a success as brilliant as that which the same brigade afterwards gained at Fontenoy. But at Blenheim their ardour in pursuit led them too far. Marlborough came up in person, and dashed in upon their exposed flank with some squadrons of British cavalry. The Irish reeled back, and as they strove to regain the height of Oberglau, their column was raked through and through by the fire of three battalions of the Allies, which Marlborough had summoned up from the reserve. Marlborough having re-established the order and communication of the Allies in this quarter, now, as he returned to his own left wing, sent to learn how his colleague fared against Marsin and the Elector, and to inform Eugene of his own success. Eugene had hitherto not been equally fortunate. He had made three attacks on the enemy opposed to him, and had been thrice driven back. It was only by his own desperate personal exertions, and the remarkable steadiness of the regiments of Prussian infantry which were under him, that he was able to save his wing from being totally defeated. But it was on the southern part of the battle-field, on the ground which Marlborough had won beyond the Nebel with such difficulty, that the crisis of the battle was to be decided.