The Saint Hilarion Castle is the best preserved ruin of the three former strongholds in the Kyrenia mountains, the others being Kantara and Buffavento. Saint Hilarion was originally a monastery, named after a monk who allegedly chose the site for his hermitage, with a monastery and a church built there in the 10th century. Starting in the 11th century, the Byzantines began fortification. Saint Hilarion formed the defense of the island with the castles of Buffavento and Kantara against Arab pirates raiding the coast. Some sections were further upgraded under the Lusignan rule, who may have used it as a summer residence. During the rule of Lusignans, the castle was the focus of a four-year struggle between Holy Roman Emperor Frederick II and Regent John d' Ibelin for control of Cyprus.
The castle has three divisions or wards. The lower and middle wards served economic purposes, while the upper ward housed the royal family. The lower ward had the stables and the living quarters for the men-at-arms. The Prince John tower sits on a cliff high above the lower castle. The church lies on the middle ward. The upper ward was reserved for the Royals and can be entered via a well-preserved archway. Farm buildings are located in the west close to the royal apartments. Along the western wall, there is a breathtaking view of the northern coast of Cyprus, overlooking the city of Girne, from the Queen's Window.
Much of the castle was dismantled by the Venetians in the 15th century to reduce the up-keeping cost of garrisons.References:
The Palace of the Grand Dukes of Lithuania was built originally in the 15th century for the rulers of the Grand Duchy of Lithuania. The Royal Palace in the Lower Castle evolved over the years and prospered during the 16th and mid-17th centuries. For four centuries the palace was the political, administrative and cultural center of the Grand Duchy of Lithuania.
Soon after the Grand Duchy of Lithuania was incorporated into Tsarist Russia, Tsarist officials ordered the demolition of the remaining sections of the Royal Palace. The Palace was almost completely demolished in 1801, the bricks and stones were sold, and the site was bowered. Only a small portion of the walls up to the second floor survived, that were sold to a Jewish merchant Abraham Schlossberg around 1800 who incorporated them into his residential house. After the 1831 uprising, the czarist government expelled Schlossberg and took over the building as it was building a fortress beside it. Before the Second World War it was the office of the Lithuanian Army, during the World War II it was the office of the German Army, and after World War II it was used by Soviet security structures and later transformed into the Palace of Pioneers. Fragments of Schlossberg's house have become part of the Eastern Wing of the restored Royal Palace.
A new palace has been under construction since 2002 on the site of the original building. The Royal Palace was officially opened during the celebration of the millennium of the name of Lithuania in 2009.