Münchenstein Castle is a landmark above the village. The ruins can still be visited and viewed, but are under private ownership.
Around 1260, the up-rising cavalier family Münch acquired the village on the hills adjacent to the river Birs and established their estate there. The exact dates of the castle erection remains unclear, but most likely building began in the time between 1260 and 1270.
The founders of the castle on the rock were the father and son Hugo II Münch and Hugo III Münch. Then, under Hugo Münch IV, the castle was expanded and extended and a ring wall was built around the village during the following 60 years. The cavalier Münch named themselves henceforth Münch von Münchenstein. After 1279 the village Geckingen was called Münchenstein. The Münchs were not able to keep the village and castle for long as their own property. During 1280 they had to hand over the ownership to the Graf von Pfirt, who then lent it to the Münchs in fief.
In March 1324, after the death of the last Graf on Pfirt, Ulrich III, the castle and the village of Münchenstein was inherited by the Herzog of Austria, as heiress Johanna von Pfirt (1300-1351) was married to Herzog Albrecht II von Habsburg (1298-1358).
In the year 1334, the castle was completed and was at its largest. A few years later, the castle was damaged by the Basel earthquake on 18 October 1356, but it was soon restored to its original condition. At this time Konrad VIII (1324-1378), son of Hartmann I Münch von Münchenstein resided in Münchenstein castle. Konrad VIII (called 'Hape') married Katharina, the hereditary daughter from Löwenburg, in 1340. Katharina Münch von Münchenstein-Löwenberg died in 1371 and Konrad VIII inherited governance of Muttenz and the three fortresses in the district Wartenburg.
During the 'Old Zürich War', just before the Battle of St. Jakob an der Birs on 26 August 1444, the Solothurner conquered the castle on 17 June 1444 and they kept it occupied. Not until the year 1469 did the Münchs get their estate back. During 1470, Konrad Münch von Münchenstein had to sell the deeds to the city of Basel, but because he was the city reeve, he was allowed to live there in fief.
During the first half of the 15th century, the dynasty of the Münchs began to crumble, and because of the high fiefdom costs, they had to sell the estate to the city. The village and castle were reigned for 283 years by the city of Basel. This reign ended, however, after the French revolution and village and castle were sold to the municipality Münchenstein, who themselves sold (passed on) the properties to the villagers. The castle was also sold and used as a stone quarry to build new houses.
The ruins of Münchenstein Castle are situated on a long, but narrow rock. There are only slender remains of the walls to be seen, these are directly above the centre of the village.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.