They took Naarden easily. Its defence works were old and poorly maintained. In the 17th century Naarden was a small fortified town overlooking a stretch of dry ground between the sea and the marshes of the river Vecht (the fortifications dated from the 1570s). After Louis XIV of France invaded the Netherlands in 1672 the fortifications were updated to modern standards. Most of the fortifications that exist today date from this period. The fortifications can be separated into two parts: the part facing the sea and the part facing the land.
During the 19th century the fortifications were updated, resulting in the construction of many new bomb shelters and other army-related buildings like barracks. At the end of the 19th century the increased fire power and range of the artillery made the defences at Naarden useless.
As a consequence of the new strategies used in warfare the emphasis of the fortifications went from the inner to the outer circuit - the covered way. In the 1890s a lot of bomb shelters were built here, most of which still exist. This gives a nice visible illustration of the progression in fortification.
After the First World War the need for Naarden as a fortress was over. The army left and it was turned into a monument and preserved just in time to prevent it from being demolished. You can walk around and inside Naarden freely - the covered way makes an excellent walking path to discover the fortifications.
One of the bastions holds a museum about the fortress, which gives a lot of information about the town's history. The museum also gives access to all the tunnels and casemates, making it a must in exploring the fortress.
The landward fortifications consist of arrow-headed bastions'connected by curtain walls, of which the lower sections were made of bricks. The flanks have two levels; the top level is on the top of the bastion and the lower part is just a few metres above the water. The lower part of the flank, which can be reached through a tunnel from the street behind the bastion gives access to 5 casemates'in the faces of the bastions and a powder magazine. From the lower flank a tunnel leads to a small pier, from which the outworks could be supplied by boat. Beyond the last casemate lies the listening tunnel; a long tunnel along the face of the bastion where guards were able to hear the enemy approaching on the water through holes in the roof.
The large bastion holds the arsenal (now a furniture showroom) as well as a sluice gate. This sluice was used to protect the harbour and to enable ships to come into the town from the sea. Two batardeaux'were built across the ditch to connect the sea dam with the town walls. Around the whole town there was a covered way'with a second ditch in front of it. The town had two gates, of which both the originals have been demolished. The Amsterdam gate doesn’t exist anymore and the current Utrecht gate dates from the 19th century. In the 20th century a third entrance into the town was made.References:
Hochosterwitz Castle is considered to be one of Austria's most impressive medieval castles. The rock castle is one of the state's landmarks and a major tourist attraction.
The site was first mentioned in an 860 deed issued by King Louis the German of East Francia, donating several of his properties in the former Principality of Carantania to the Archdiocese of Salzburg. In the 11th century Archbishop Gebhard of Salzburg ceded the castle to the Dukes of Carinthia from the noble House of Sponheim in return for their support during the Investiture Controversy. The Sponheim dukes bestowed the fiefdom upon the family of Osterwitz, who held the hereditary office of the cup-bearer in 1209.
In the 15th century, the last Carinthian cup-bearer, Georg of Osterwitz was captured in a Turkish invasion and died in 1476 in prison without leaving descendants. So after four centuries, on 30 May 1478, the possession of the castle reverted to Emperor Frederick III of Habsburg.
Over the next 30 years, the castle was badly damaged by numerous Turkish campaigns. On 5 October 1509, Emperor Maximilian I handed the castle as a pledge to Matthäus Lang von Wellenburg, then Bishop of Gurk. Bishop Lang undertook a substantial renovation project for the damaged castle.
About 1541, German king Ferdinand I of Habsburg bestowed Hochosterwitz upon the Carinthian governor Christof Khevenhüller. In 1571, Baron George Khevenhüller acquired the citadel by purchase. He fortified to deal with the threat of Turkish invasions of the region, building an armory and 14 gates between 1570 and 1586. Such massive fortification is considered unique in citadel construction.
Since the 16th century, no major changes have been made to Hochosterwitz. It has also remained in the possession of the Khevenhüller family as requested by the original builder, George Khevenhüller. A marble plaque dating from 1576 in the castle yard documents this request.
A specific feature is the access way to the castle passing through a total of 14 gates, which are particularly prominent owing to the castle's situation in the landscape. Tourists are allowed to walk the 620-metre long pathway through the gates up to the castle; each gate has a diagram of the defense mechanism used to seal that particular gate. The castle rooms hold a collection of prehistoric artifacts, paintings, weapons, and armor, including one set of armor 2.4 metres tall, once worn by Burghauptmann Schenk.