Royal Castle in Łęczyca - medieval castle, located in the Greater Poland. The fortress was built by order of Casimir III the Great in the years 1357-1370.

The defensive structure was built on a hill and surrounded by a moat filled with water. Brick building wall defended a height of 10 meters with octagonal towers. The castle occupied an area of ​​2600 square meters in In the courtyard of the castle was the barn and the armory.

When completed, the castle became a permanent residence of King Casimir the Great. At the beginning of the fifteenth century, he suffered at the hands of the Teutonic Knights, who staged in the castle arson. In subsequent years, the castle prison were concluded many Teutonic Knights. In the second half of the fifteenth century castle took King Casimir IV.

After the big fire in the second half of the 15th century, the castle remained in ruins until the beginning of the 1560s. In 1565 it was completely rebuilt chief treasurer of the Crown Jan Lutomirskim by the state treasury. In the seventeenth century it was again destroyed during the Swedish attack. During the following years the locals have used the remains of the castle as a source of building materials.

After the Second World War, the castle became the seat of the Scout troop, and in 1964 began its reconstruction. Today, the royal castle is a museum.