host the coronation of the proclaimed king Vytautas the Great in the castle, which were disrupted by his untimely death.

After the 16th century, the Upper Castle was not maintained, and it suffered from neglect. Until the early 17th century, a prison for noblemen was located in the Upper Castle. It was used as a fortress for the last time during the invasion of the Russians in 1655, when for the first time in Lithuanian history,