Napoleon cleared his throat and addressed the man at the head of the Austrian deputation. The official was tall and thin, and his dark curls were streaked with grey. His coat was finely embroidered with gold lace and a broad red ribbon hung across his shoulder. Napoleon spoke curtly.
‘What is the purpose of your presence here?’
‘Sire, I represent the mayor of Vienna. His honour respectfully requests an audience with you.’
‘Your name?’
‘Baron Karinsky, sire.’
‘Tell me what your master wants.’
‘Yes, sire. He wishes to discuss terms for the surrender of Vienna.’
‘Vienna? I see.’ Napoleon paused. ‘And has Emperor Francis agreed to the surrender of his capital?’
‘As far as I understand, sire.’
‘What does that mean?’
‘His imperial majesty and the court have left the city, sire. The mayor was left in charge with orders to defend it for as long as is practicable.’
‘Then this offer relates to Vienna alone?’ asked Berthier.
‘Indeed, sir.’
‘There is no intention on the part of Emperor Francis to discuss an armistice?’
‘Not as far as I am aware.’
Berthier exchanged a look with Napoleon, who let out a brief sigh of frustration before he continued addressing Karinsky.
‘So why is the mayor preparing to discuss surrender before we have fired a single shot?’
The Austrian gestured towards the city. ‘The garrison has already withdrawn from the walls, sire. On the orders of Archduke Charles. All that remains is the militia. Accordingly, the mayor has determined that he cannot defend the city. Out of compassion for the inhabitants of Vienna he believes it would be better to surrender rather than waste lives in a pointless attempt to resist you, sire.’
‘Where is the garrison now?’ Napoleon snapped.
‘They have retreated across the Danube.’
Napoleon stared at the man briefly. ‘And the bridges are intact?’
The man lowered his eyes as he replied. ‘They were when I left the city, sire.’
Napoleon turned to Berthier. ‘Send a cavalry division forward. Tell Bessiиres I want his men to take those bridges at once. We must have access to the far bank if we are to—’
He was interrupted by a faint roar and looked towards Vienna. Beyond the city skyline he could see a billowing column of smoke rising up into the clear sky. A moment later there was a second explosion and more smoke, followed by two more blasts that echoed across the landscape towards the startled leading elements of the French army.
‘They’ve blown the bridges,’ Berthier said quietly.
Napoleon nodded, and glared at Baron Karinsky. ‘Tell the mayor Vienna is to surrender unconditionally. If he does not surrender the city within the hour, then I will order my guns to pulverise your capital. Is that clear?’
Karinsky shook his head. ‘Sire, I am not authorised to negotiate with you. My master simply sent me here to invite you to speak with him.’
‘There is nothing to say. There will be no negotiations. Tell him that I demand he surrender, and that if he fails to do so then the death and destruction that I will rain down on Vienna will be his responsibility.’
The Austrian opened his mouth to protest but Napoleon took out his watch and glanced down briefly. ‘It is now just gone eleven o’clock. If the city has not surrendered by noon I will order the guns to open fire. It would be wise of you to waste no time in informing the mayor of my terms.’
Karinsky frowned and then abruptly turned his horse about and spurred it into a gallop as he headed back down the road to Vienna.
As soon as the gates of Vienna were thrown open to the French army, Napoleon and his chief engineer, General Bertrand, rode through the city to assess the condition of the demolished bridges. The Austrian engineers had done a thorough job. The central spans of each bridge had been blown, and the buttressed piles were little more than heaps of masonry in the swiftly flowing current of the Danube. On the far side of the river the enemy was busy building barricades across the ends of the ruined bridges. On the flanks artillery batteries were being constructed to cover the river in case the French engineers attempted to make any repairs to the blown spans.
Napoleon gazed at the bridges with a heavy heart. The enemy would be safe until the French could find another way across the river.
General Bertrand had finished surveying the bridges and the Austrian forces beyond, and clicked his tongue. ‘It would be suicide to attempt any repairs, sire.’
‘I can see that for myself,’ Napoleon replied testily. ‘If we can’t cross here, then we must find somewhere else.’
‘Yes, sire.’ Bertand nodded thoughtfully as he removed his hat and scratched the thin strands of hair plastered to his skull. ‘The main problem is the current. As you can see, the river flows quickly, particularly at this time of year. Any sudden storms can only make matters worse. If there is a sudden flood, then our pontoons could be carried away.’
‘Very well, then. Where do you suggest?’
‘I’ve considered a few possibilities already, sire, having questioned the local people.’ Bertrand delved into his saddlebag and unrolled a map. He pointed a gloved finger at the map where it indicated the banks of the river, downstream from Vienna. ‘I think this looks promising, sire. Here, opposite the island of Lobau. It’s over eight hundred yards from our bank to the island, but from there to the far bank it’s only another hundred yards. And the width of the river means that the current is slower there than elsewhere as well.’
Napoleon nodded approvingly. ‘Good. Assuming this site is suitable you are to begin work the moment the bridging train reaches the army. The wagons carrying the pontoons are to have priority over all other vehicles on the road. Issue orders for that in my name.’
‘Yes, sire.’
‘I want the river bridged as quickly as possible. Understand? There’s no time to waste. The army must be across the Danube in less than a week if we are to defeat Archduke Charles.’
Bertrand puffed his cheeks. ‘As you order, sire.’
Smiling coldly Napoleon turned his attention back to the enemy troops on the far bank. The latest reports from Davout indicated that Archduke Charles and his army were still some distance from Vienna, on the far bank. If Bertrand could bridge the Danube quickly the Austrians would be caught between Napoleon and Davout and be forced to give battle. The odds would be in Napoleon’s favour, as further reinforcements under Marshal Bernadotte were marching from Dresden to join him. Provided the French army kept up its momentum Archduke Charles should be defeated before his brother arrived to help him.
Five days after the fall of Vienna, the wagons carrying the pontoons arrived and Bertrand began work on the bridge. Napoleon joined his senior engineer to watch the progress as each raft was manhandled down into the river and rowed out into the current with long oars, until it was in position to drop a heavy anchor upstream. The engineers paid off the cable until the pontoon was in line with those already secured in place; then the pontoon was linked with lengths of timber and covered in decking. A covering force of infantry had been landed on the island and they quickly flushed out the handful of Austrian defenders. General Bertrand drove his men hard and the Danube was bridged in little over a day and a half. The moment the task was complete, the first of the cavalry units began to cross.
‘Fine work!’ Napoleon congratulated the general when he reported the news to the Emperor in person, just after midday. The forward headquarters had been established in a small village close to the end of the bridge, and the countryside around was crowded with men, horses, cannon and their limbers and wagons, as the army massed ready to cross.
‘Thank you, sire.’ Bertrand bowed his head. He had not slept for nearly three days and his exhaustion was evident.
‘What of the last stage?’ Berthier asked. ‘The crossing from Lobau island to the far bank?’