Fourth Crusade

Long ago, a group of people went on a trip.

They wanted to go to a holy city. They hired ships from a place called Venice.

But the travelers did not have enough money. Because they could not pay, they fought other cities. This was not part of their first plan.

Then, the group went to a huge city. This city was named Constantinople.

The travelers took the city and its riches. This was a very sad time for the people there. It changed how many lands were ruled.

Many years later, the city was taken back. The world was different after this big trip.

In 1202, a group of soldiers began the Fourth Crusade.

They wanted to reach the city of Jerusalem. To get there, they hired ships from Venice.

The leaders of the group made a big mistake. They thought many more soldiers would join them. Because of this, the army did not have enough money to pay for the ships.

To pay their debt, the soldiers fought the city of Zara.

This was not what they had planned. Later, they made a deal with a prince named Alexios. He wanted the soldiers to help him become the leader of Constantinople.

The soldiers helped him, but then things went wrong. The people in the city rose up against him.

In 1204, the soldiers attacked Constantinople. They took the great wealth of the city.

This event broke the Byzantine Empire into smaller parts. It also made the empire weak for many years. The empire did not take the city back until 1261.

The Fourth Crusade was a large military journey that began in 1202.

Pope Innocent III called for this mission to help Christian lands. The main goal was to take back the city of Jerusalem. To do this, the leaders planned to defeat the Ayyubid Sultanate in Egypt. This group of soldiers wanted to reclaim holy places lost years earlier. They hoped a successful mission would change the power in the region.

Getting to Egypt required a very large fleet of ships. In 1201, the leaders made a deal with the city of Venice. They asked the Venetians to build many ships and train sailors. The plan was to carry 33,500 people across the sea. This group included 4,500 knights and 4,500 horses. There were also 9,000 squires and 20,000 foot-soldiers expected. However, the leaders made a mistake in their math. Not enough soldiers arrived to pay the full price for the ships.

Because they could not pay, the Crusaders had to find other ways to settle their debt. The leader of Venice, Enrico Dandolo, suggested a new plan. He asked the Crusaders to help him attack the city of Zara. This city was on the Adriatic coast and was a Catholic city. In November 1202, the Crusaders attacked and took Zara. This was a surprising turn because the Pope did not want them to fight other Christians. The Pope was so upset that he temporarily excommunicated the army.

In 1203, the journey took an even stranger path toward Constantinople. A Byzantine prince named Alexios Angelos made an agreement with the leaders. He promised them money and support if they helped him become emperor. The main army reached the great city of Constantinople on June 23, 1203. They helped Alexios become co-emperor in August of that year. But things did not stay peaceful for long. In January 1204, a group of people rose up and removed Alexios from power.

After Alexios was killed in February 1204, the Crusaders decided to take the city for themselves. In April 1204, they captured Constantinople and took its many riches.

This event broke the Byzantine Empire into three smaller states. It also created new lands called the Frankokratia, which means "Rule of the Franks." This period of fighting and loss made the empire very weak. The empire did not regain its capital until July 1261. This long period of trouble helped lead to the eventual fall of the empire later in history.

The Fourth Crusade (1202–1204) was a major Latin Christian military expedition. It was called for by Pope Innocent III. The original goal was to recapture the city of Jerusalem. To achieve this, the Crusaders planned to defeat the Ayyubid Sultanate in Egypt. Egypt was the dominant Muslim power in the eastern Mediterranean at that time. However, the mission changed due to economic and political issues. Instead of reaching Jerusalem, the army attacked other Christian cities.

To reach Egypt, the Crusaders needed a massive fleet of ships. In 1201, leaders negotiated a contract with the Republic of Venice. The Doge of Venice, Enrico Dandolo, agreed to build a dedicated fleet. This fleet was intended to transport 33,500 people. The expected force included 4,500 knights and 4,500 horses. It also included 9,000 squires and 20,000 foot-soldiers. This was a very ambitious plan that required a full year of preparation.

Problems arose when the Crusader leaders overestimated their numbers. Many soldiers sailed from other ports instead of Venice. Because of this, the army could not pay the full price for the Venetian fleet. To settle this debt, Doge Enrico Dandolo proposed an alternative. He suggested the Crusaders attack the rebellious city of Zara on the Adriatic coast. In November 1202, the Crusaders besieged and sacked Zara. This was the first time a Catholic army attacked a Catholic city. Pope Innocent III was so upset that he temporarily excommunicated the army.

In January 1203, the expedition took another unexpected turn. The Crusaders met with a Byzantine prince named Alexios Angelos. He promised the army money and military support if they helped him. His goal was to restore his deposed father, Isaac II Angelos, to the throne. The main Crusader army arrived at Constantinople on June 23, 1203. By August 1203, Alexios was crowned as co-emperor. However, a popular uprising in January 1204 removed him from power.

The situation turned violent after Alexios was murdered on February 8, 1204. The Crusaders felt they were owed the promised payments. In April 1204, they decided to conquer the city themselves. They captured Constantinople and plundered its enormous wealth. Constantinople had been the largest and most sophisticated city in Christendom. It was protected by 20 km of triple walls. At its height, the city held about 500,000 people.

The fall of the city led to the fragmentation of the Byzantine Empire. It split into three separate states centered in Nicaea, Trebizond, and Epirus. The Crusaders also established new territories called the Frankokratia, or "Rule of the Franks." The Latin Empire of Constantinople became the center of this new system. This period caused constant war with the Byzantine successor states and the Bulgarian Empire. The Nicaean Empire eventually recovered Constantinople in July 1261.

The Fourth Crusade had a lasting impact on history. It solidified the East–West Schism between different Christian branches. The sack of the city dealt an irrevocable blow to the Byzantine Empire. The region was left depleted of soldiers, money, and resources. The empire lost control of the Balkans, Anatolia, and many Aegean islands. This made the restored empire very vulnerable to future invasions. Eventually, the expanding Ottomans caused the empire to fall in 1453.