In 1311, Teutonic mercenaries called Landsknechts set up a camp on the high banks of the Angrapa River, close to where it flows into the Inster River. Later, in 1337, the Teutonic Knights built a brick castle in the same location. Most of the construction works had been completed by 1347. The fortress was named Insterburg Castle.
For many centuries to follow, Insterburg Castle was a bastion located in the easternmost parts of the Teutonic State, from which raids against Lithuania were waged. Originally, Insterburg Castle was meant to serve as a seat for the local commander, known as komtur. But this plan had to be revoked, as the fortress was constantly threatened by enemy. As a result, the castle was run by a Teutonic procurator, and in the 14th - 15th centuries it became an important military base. In the administrative division, Insterburg belonged to the commandry of Königsburg.
From 1643 to 1647, Maria Eleonora, a sister of the Prussian Prince Elector George Wilhelm, spent her best days at Insterburg Castle, after her royal husband, King of Sweden, Gustaw Adolf, had died. Following the death of her husband, Queen Maria Eleonora had to leave Sweden due to a conflict with her daughter, Queen Christina.
In 1812, the castle was visited by the French Emperor, Napoleon Bonaparte. Napoleon stopped here on his way to Russia, where he was going to take personal command over his armies. In 1814, Elisabeth Alexeievna, the wife of Tzar Alexander I of Russia (1777-1825) was passing through Insterburg. In 1689, Insterburg became the place of the death and burial of Anchen von Tarau, a heroine of a well known East Prussian song.
Today the castle, which lies in the centre of the town of Chernyakhovsk is no more but a picturesque ruin. The north section of the castle outward yard had more luck as its building have survived and now house a museum. On the square in front of the museum local enthusiasts and artists such as singers and musicians organise concerts, contests and other cultural events. And most importantly, hope lingers on in the town that one day the castle will be reconstructed.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.