In July 1052, William bid farewell to the Kingdom of Lorraine and returned to Paris with his army again.

Seeing the shadows of Paris and the royal palace on the Île de la Cité in the distance, William felt more at home, preferring the sunny and affluent city of Paris surrounded by the Seine to the gloomy and oppressive weather of London, England, and when the war was over, he would be crowned King of France at Reims Cathedral and move the capital from London to Paris.

"Your Majesty, Your Majesty! I'm Phalle Osborne, and I've seen you! From afar, William saw Phaleosborne hurrying with his guards to meet him.

"Faller, long time no see, is everything okay here?" Looking at Faller on his knees, William asked with a smile.

Although William was still concerned about the situation in the Kingdom of France during the war, he still couldn't help but ask when he met Faller.

"Your Majesty, after you obtained the great god of the HRE Empire, the Pope and the Italian coalition forces that were originally entrenched in Aquitaine and Bourbon immediately retreated to the territory of the Duchy of Toulouse, and did not dare to make any more moves.

And just two days ago, Cardinal Hildebrand, the deputy priest of His Holiness the Pope, arrived in Paris with a mission from His Holiness the Pope to meet you. Farle Osborne said with a gleeful face.

"Hildebrand......" William muttered the name in his mouth, searching for some memories of him in his mind, and suddenly a flash of inspiration flashed and he clapped his hands and exclaimed, "It is him, Gregory VII!" ”

Phaleosburn only felt confused when he heard the name, and he didn't dare to raise his head to ask the unspeakable doubts in his heart.

William remembered Hildebrand, the most prominent pope in history, St. Gregory VII, who reigned from April 22, 1073 to May 25, 1085, and was one of the most prominent popes of all ages. He fought his life against the Holy Roman Emperor Henry IV in order to free the Catholic Church from the control of the Holy Roman Empire.

He served as a priest and papal secretary under Gregory VI, and was favored by Gregory VI to lead the Cluny monastery movement.

Soon he was promoted to the position of "Pontifical Chancellor" of the ecclesiastical domain, and because of his managerial skills, the income of the Holy See increased dramatically.

It was only later that the Holy Roman Emperor led his army south to Rome, deposed Gregory VI VI and two puppet popes, and re-installed the German bishop as the new pope, Clement II.

In the years that followed, Hildebrand stepped down from his position as the Pope's confidential secretary and quietly retired to the Cluny Convent. At that time, the abbot of Cluny was St. Oderum, and the vice-president was St. Schüg.

Hildebrand's original intention was to spend his life in Cluny, but Bruno was elected Pope - Leo IX, and forced him to go to Rome to help manage the affairs of the Holy See.

It is rumored that Leo IX personally went to the Abbey of Cluny three times to invite Hildebrand to assist him, which reminded him of the Wuhou prince Liang who assisted the two generations of kings of Shu and Han in the Three Kingdoms era, and I have to say that there are some similarities between Hildebrand and Zhuge Liang.

During the reign of Pope Leo IX, Hildebrand was entrusted with the responsibility of managing the finances and assisting the Pope in carrying out the reforms, especially in leading and promoting the Cluny convent movement, which he greatly credited.

In 1054, Hildebrand was appointed deputy priest and became a key figure in the choice of the new pope.

In April 1054 of the same year, Leo IX died, and Hildebrand assisted in the management of the church as a senator.

Pope Leo IX died, and Hildebrand, with his prestige and ability, was enough to run for the new pope, and a considerable number of people supported him to come to power.

However, for the reform of Cluny's seminary, for the elevation of the status of the pope and the struggle for imperial power, Hildebrand hibernated his minions, expressed no interest in the papal throne, and personally led a delegation to Germany to ask Henry III to appoint a new pope.

Emperor Henry III of the HRE elected the new Pope of the Germanic Bishop Gegardevi, Victor II. The new Pope Victor II was so grateful to Hildebrand that he elevated him to the rank of cardinal.

Hildebrand assisted four popes, Victor II, Stephen IV, Nicholas II, and Alexander II, and the four popes consulted him on important matters before making decisions, which shows his ability and position.

During this period, in 1058, after Hildebrand helped Nicholas II to power, he was immediately promoted to the rank of Grand Vice-Priest.

In 1059, Hildebrand was promoted to the rank of Chancellor of the Holy See, and the clergy, nobles and commoners at that time increasingly felt that Hildebrand was the soul of the Holy See.

On April 13, 1059, Hildebrand presided over the promulgation of the famous law on the election of the pope, which stipulated that the pope could only be elected by the College of Cardinals, that secular feudal lords and Holy Roman emperors could not intervene, and that the buying and selling of priesthood and clergy were forbidden.

It can be said that he was the founder of the Church for hundreds of years later, and his series of reform measures directly influenced the later Ecumenical Church and the Catholic governance model, laying the foundation of the Western legal era, and was called the first great revolution by Western historians - the Papal Revolution.

In 1073, Pope Alexander II died, and he was put on the papal throne by the Cardinal Conference and Emperor Henry IV of the HRE, and was given the throne of Gregory VII, also known as Gregory VII.

The famous Kassano Castle Incident was the protagonist of the Holy Roman Emperor Henry IV and Gregory VII/Gregory VII Hildebrand.

In 1076, Gregory VII issued an edict exmissing Emperor Henry IV of the HRE, imposing a law on him and declaring that the people under the emperor's rule were not required to owe allegiance to him in the future. The German nobles were already dissatisfied with the atrocities of Emperor Henry IV, so they convened an imperial council in October 1076 to decide that if Henry IV did not obtain a pardon from Pope Gregory VII and restore his membership within one year, Henry IV would lose the throne of the Holy Roman Empire, and the nobility and people would no longer swear allegiance to him.

Henry IV and the Gregorian knights engaged in a series of battles for clerical and imperial power, but in the end, Henry IV was angry and had to submit to the Pope.

At the beginning of 1077, Henry IV personally came to the Pope's residence, in front of the Cassano Castle of Matilda, the Grand Duchess of Tuscany, and begged Gregory VII for three days in the cold and snowy night, barefoot and blanket, and begged Gregory VII for three days, before he was forgiven and forgiven by Pope Hildebrand.

This is the famous Kassano Castle Incident, which was also a great victory for the Church over the German Emperor and the secular power, after which the Church was in its heyday and overrode the secular monarchs.

William could not be delighted at such a great figure as Gregory VII Hildebrand, who decided to leave Hildebrand in Normandy anyway and assist him in reforming the Church.

Since William's break with the church, although William has taken control of the Kingdom Church, there is no suitable person to preside over the church for him, and Hildebrand, the future great pope, is really his ideal candidate.