Henry I fled back to Paris with his knights, and William did not want to take advantage of the new defeat of the other side to take advantage of the new defeat of the other party, but now he was trapped by the capture of prisoners.

There were indeed too many prisoners in his hands, more than 18,000 people, and in order to take care of these prisoners alone, William had to arrange for an army of 2,000 men to guard them.

William was very hopeful that he would have abandoned his captives and led his army in pursuit, but these captives had the advantage of the most valuable things in his hands, and there were many high-ranking nobles, and he would not easily give up these valuable captives until he had drained them.

After three days of waiting, William finally waited for the Duke of Richard's army to come and join him, during which Prime Minister Ladolph organized a militia to escort prisoners and captured supplies for him, which undoubtedly relieved William's pressure.

When William and Richard combined, his strength swelled to more than 40,000 people, with nearly half of the elite soldiers, and countless Norman knights and noble generals.

After only a little rectification, William led the whole army straight to the city of Paris, and he was not prepared to give Henry I a chance to fight back.

......

After Henry I was defeated and returned to the court of Paris, he regretted his rash move, and the other party led his army out of the castle defense system he had worked so hard to build and rushed straight to Paris, so that King Henry had to fight back with a large army.

"Now is not the time to regret it", Henry I decided to gather his army and allies again and fight William to the death.

The first to arrive was a military force pulled up by Archbishop Gervais of Reims with church assets, and because of William's discord with the church, the church looted everywhere and armed a real expensive army with a large amount of church assets.

This time, Archbishop Gervais of Reims tried his best to cobble together a huge army of 13,000 men, and when he heard that William I had invaded Paris, he led the army to march, which was not only supported by ecclesiastical assets, but also respected by people from all over the world.

At the same time, Henry I was determined to win over his half-brother, Robert Brown, Duke of Burgundy. Capet joins his faction, promising Robert to be his heir to the throne and to inherit the throne and lands of France.

Both Henry I and Duke Robert are descendants of the Capetian family, and no matter how they fight, the victory in this war will belong to the Capetian family.

But if the throne is usurped by William, it will be different, and the Capetian family will be completely taken away from the territory and crown, which Henry I cannot support in any case.

Soon after, Henry I made contact with Robert, Duke of Burgundy, and asked him for help on the terms of his succession to the throne.

By this time, the Duke of Burgundy had succeeded in taking possession of the county of Bourges, but William had promised him only half of the county of Bourges, while the other half would be given to another man.

However, Robert the Duke of Burgundy once asked William if he could give him the remaining half, but William did not accept it, which inevitably affected William and Robert's influence.

The Duke of Burgundy, who was rejected, naturally became increasingly estranged from William, and finally persuaded by Henry I, lured by his conditions, the Duke of Burgundy decided to join Henry I's faction.

The betrayal of the Duke of Burgundy was a heavy blow to William, and with the Duke of Burgundy on his side, Henry I was able to get at least more than 11,000 troops, plus the support of the Archbishop of Reims and the Church, as well as the support of various families, the number of troops under his command was restored again and instantly exceeded the size of 30,000 men.

Although the size of an army of 30,000 men did not make much difference to William, a chaotic army that was not subordinate to each other was of no value to William to be wary of.

William had no worries about the Duke of Burgundy's betrayal, and did not take him seriously at all, even if it would provide an army for his enemies.

William had long regarded the Duchy of Burgundy as one of the most important matters that had to be eradicated, and the recovery of the Duchy of Burgundy's lands was one of the most important matters.

Located in the eastern part of France, bordering Germany and Switzerland, Burgundy was strategically important, not only as a gateway to the Holy Roman Empire, but also as a stepping stone to the invasion of Switzerland.

The Principality of Burgundy is a flat terrain with fertile soils that are suitable for growing crops and grapes, such as the famous Burgundy red wine that came from the Duchy of Burgundy.

For this area of the Duchy of Burgundy, William is really very greedy, whether it is from the security perspective of Paris, or the strategic consideration of the future invasion of the HRE Empire, the capture of Burgundy is extremely important.

......

Gathering an army of 40,000 men, William led his army straight to the capital city of Paris, and there was nothing to stop him along the way, and everywhere he passed were castles and towns abandoned by the defenders, William easily took over more than a dozen castles and towns.

At the Battle of Versailles not long ago, William had broken the courage of Henry I's soldiers, who no longer had the courage to resist the Norman advance.

After only one day's work, the next morning, William led his army to the outside of Paris, fifteen kilometers away.

The 40,000 army is huge, but no matter how large the city of Paris is, it is not enough for the 40,000 army to attack the city at the same time, so the army can only be divided into two groups and continue to attack the city.

William didn't use fire oil bombs this time, but he couldn't help but smile as he looked at the trembling soldiers on the city wall in front of him.

Siege warfare was not difficult, but William was not in a hurry, he wanted to use Paris as a bait to lure other nobles to come to the rescue, and use the tactics of encirclement and reinforcement to destroy the opponent.

William besieged Paris with 20,000 men, while the remaining 20,000 were led by William himself to seize the whole of Paris and cut off the unruly nobles.

As the days passed, the Duke of Burgundy, who had ally Henry I, did not provide military support to the other side in accordance with their covenant, and Henry I struggled to support him, and the atmosphere in Paris became more and more strange.

"Didn't anyone come to Henry I's aid? It seems that he is a really bad man as a king. William couldn't help but think, "It seems that the war in Paris will be over soon, and the city of Paris will fall today." ”

The siege officially began, and there was no doubt that William had won again, and some forces in the city had gained trust and understanding with William's spy cooperation in order to curry favor with William.

King Henry I was still not caught, and before he left, he did not wear the king's robe at all, but changed into civilian attire and fled to the archdiocese of Reims again.