In the 12th century, a fortress was located at Breda. The city of Breda came into existence near the fortress. In 1350, the Duke of Brabant sold Breda to Jan II of Polanen (Baron of Breda). He reinforced the castle with four towers and a channel. His daughter Johanna of Polanen married in 1403 the German Duke Engelbert I of Nassau. Their son Jan IV of Nassau enlarged the castle.
Henry III of Nassau-Breda changed the castle into a Renaissance palace in 1536. He died in 1538 and his son René of Châlon finished the castle and built a chapel in 1540. René of Châlon died without any children and the castle became property of his German cousin, William I of Orange, during his battle with the Spanish, it had a military function again (Dutch revolt).
In 1667 the Treaty of Breda was signed by England, France and the Republic of the Seven United Netherlands. This ended the second English-Dutch war. Stadtholder - King William III of England rebuilt the castle between 1686 and 1695. But he and his successors did not stay much at the castle.
In the France time (18th century), the castle was a military barracks and military hospital. Between 1746 and 1748 it was the site of the Breda Peace Talks between Britain and France during the War of the Austrian Succession. The talks formed the foundation for the eventual peace settlement at Treaty of Aix-la-Chapelle.
William I of the Netherlands placed at disposal of the Royal Military Academy in 1826. In this time, Thomas Vincidor built three wings and later William II built the fourth wing. The entrance gate is from the 16th century. Today Breda castle is used by Koninklijke Militaire Academie, the service academy for the Dutch Army and the Dutch Air Force.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.