Only the lower part of the tower was preserved from this period of the castle, consisting of regular ashlar and adjacent walls.

before he became the Archbishop of Prague, he spent his youth at Jenštejn and inherited the castle after death of his brother Martin.

The tower still bears typical features of the royalty castles: in addition to the profiling of the portals, it is the intentional use of the Štauf bossage masonry, mainly for aesthetic function.

[4] Jan of Jenštejn was humiliated and forced to abdicate (1396), died in complete poverty and obscurity in 1400 in Rome.

In the following decades, the castle was owned by many owners (Oldřich of Černice of Kácov, Ctibor Čepec of Libiš, Jindřich of Aachen, Jan Libický of Libice and others).

Castle lost his sense, was not inhabited and quickly fell into disrepair, so that after ten years, in 1597, the governor of Brandýs Kašpar of Milštejn announced to the chamber that Jindřich Homut of Harasov asked "for an old truss with other wood in the abandoned chateau of Ještejn", but added that "over the same castle at the tower, still a piece of brickwork around 15 pairs of rafters is standing, with beams, hambalets…", and perhaps at that time he still considered the repair of the building possible.

It stands on a rock, around fortress is trench deep fill with water, a wooden bridge was over it, and it is all abandoned and so desolate.

A castle core has a triangular shape.The oldest building structure is located only in a sub-part of Bergfried and the adjacent part of the wall, which is lined with smaller stones.

From the front palace on the east side stood a part of the courtyard wall with arched entrance to the basement.

[5] The dominant feature of the preserved part of the castle is a 28-meter-high round tower on which are three coats of arms of the owners carved from sandstone are placed at the entrance.

There is a stone altar with an archbishop's personal coat of arms under the triumphal arch, which has simple geometrically indicated column base on the side of the presbytery.

The bust of Archbishop Jan of Jenštejn (the most important owner of the castle) was added after the modern reconstruction into the chapel space.

The high cost of renting a classic tubular scaffold, which was not financed by the Ministry of Culture, was problematic.

The scaffolding also protects neighborhood from the falling parts of the wall, which has been a great danger for the owners of surrounding houses in recent years.

This allows work on the remains of the romantic extension, which has long been thought to be the remnant of the original Gothic tower.

The exterior face of the tower is being preserved and reconstruction work will continue when the weather conditions will allowed to do so.