The Harderwykenburg is one of the oldest extant castles of East Frisia. It was built in the style of a medieval stone house soon after 1450 in Leer, Lower Saxony, Germany.
The original building, in the form of a tower, was built of stones from a monastery, and measures 8.09 x 11.13 meters. The external walls are between 0.96 and 1.23 meters thick. The tower was later supplemented by a two-storey extension. The steeply proportioned building has now been not entirely satisfactorily restored.
The first owner of the castle was probably the chieftain Hayo Unken, on his mother's side a grandchild of the chieftain Focko Ukena. The castle was also known as the "Unkenburg", after Hayo's family name. In 1588 the steward (Drost) Dietrich Harderwyk Armgard married a daughter of Hayo Unken IV, and thus came into possession of the castle, which now bears his family name.
In 1788 possession of the building passed from the then owner, Carl Stephan von Schilling, to Carl Gustav, Baron zu Inn und Knyphausen, whose descendants continue to live there.
Coordinates: 53°13′47″N7°26′54″E / 53.22972°N 7.44833°E
Leap Castle is a castle in Coolderry, County Offaly, Ireland, about 6 km north of the town of Roscrea and 10 km south of Kinnitty on the R421.
Haneburg is a castle in East Frisia, Germany. It is one of the few buildings remaining of the Renaissance time in north-west Germany, which was much affected by the Netherlands. The castle was built by the chieftain of Leer, Hayo Unken, in the middle of the 15th century.
The Vilnius Castle Complex is a group of cultural, and historic structures on the left bank of the Neris River, near its confluence with the Vilnia River, in Vilnius, Lithuania. The buildings, which evolved between the 10th and 18th centuries, were one of Lithuania's major defensive structures.
Dryslwyn Castle is a native Welsh castle, sited on a rocky hill roughly halfway between Llandeilo and Carmarthen in Wales. It stands on high ground overlooking the Tywi Valley with extensive views. It was built in about the 1220s by one of the princes of the kingdom of Deheubarth, and changed hands several times in the struggles between the Welsh and English over the ensuing centuries. It is considered one of the most important remaining structures built by a Welsh chieftain and is a Grade I listed building.
Medvedgrad is a medieval fortified town located on the south slopes of Medvednica mountain, approximately halfway from the Croatian capital Zagreb to the mountain top Sljeme. For defensive purposes it was built on a hill, Mali Plazur, that is a spur of the main ridge of the mountain that overlooks the city. On a clear day the castle can be seen from far away, especially the high main tower. Below the main tower of the castle is Oltar Domovine which is dedicated to Croatian soldiers killed in the Croatian War of Independence.
Trolle-Ljungby Castle is a castle in Kristianstad Municipality, Scania, in southern Sweden. The Renaissance style castle is enclosed by a moat.
Stjärnorp Castle is situated north of lake Roxen just north of Linköping, in the southern province of Östergötland, Sweden. It was built by the Douglas Family, with a view over Lake Roxen.
Fornelos Castle is a castle located in Crecente in the Pontevedra province of Spain.
The Baumkircher Tower, also known as Tabor Castle or Lower Castle, is a defensive tower or small castle located in the town of Vipava in southwestern Slovenia.
Lubcha Castle was a residential castle of the Radziwill family on the left bank of the Neman River at Lubcha near Navahradak Belarus.
Považský hrad is a ruin of medieval castle on the right side of the river Váh, near Považská Bystrica in Slovakia. It is thought to be the essential part of silhouette of Považie and Upper Váh region especially. It is built on a cliff 497 meters above sea level. It was one of the most important castles guarding the valley of the river Váh. At the peak of its fame it was home of around 400 people. It is famously known as an "eagles nest" of the important Hungarian noble family of Podmanitzky.
Steinsberg Castle is a ruined castle in the former municipality of Ardez of the Canton of Graubünden in Switzerland. It is a Swiss heritage site of national significance.
Buittle Castle, also known historically as Botle or Botel Castle, is a Motte and Bailey site in Galloway, south-west Scotland with significant early and medieval history comprising a significant ruined Norman style Motte, and several extant buildings and gardens, including the later residential building in the form of the Tower House, on the historic Bailey. It is located in the valley of the River Urr, 1 kilometre (0.62 mi) west of Dalbeattie. The castle is within the parish of Buittle, in the traditional county of Kirkcudbrightshire and is a scheduled ancient monument.
Ter Worm or Terworm Castle is a castle located in the municipality of Heerlen, Limburg Province, Netherlands. The castle is part of the Terworm estate.
The Château de Buchenek is a castle in the commune of Soultz-Haut-Rhin in the Haut-Rhin département of France. Dating from the second half of the 13th century, it was altered, possibly in the 14th century, and in the 16th century.
Rancia Castle is a medieval castle, nearly 7 km from Tolentino in the province of Macerata, region of Marche, Italy. It remains relatively well preserved in the valley of the Chienti.
Kemény Castle, situated at the foot of the Călimani Mountains on the right bank of the Mureș River in Brâncovenești, Mureș County, Romania, is one of the finest examples of Hungarian Renaissance architecture in Transylvania. It was built using the remains of a Roman fortification situated not on the site of today's building but in the adjoining orchard.
Château de Beurthé or Château de Steinbach is a castle situated in Steinbach, Belgium, overlooking a vast park and the Steinbach river.
Haus Bamenohl is a castle in the village of Bamenohl, municipality of Finnentrop, Olpe district in North Rhine-Westphalia, Germany.
The Visconti Castle of Trezzo was a mediaeval castle built between 1370 and 1377 by Bernabò Visconti, Lord of Milan, at Trezzo sull’Adda, Lombardy, Northern Italy. It included a massive tower, 42-meter high, and a fortified bridge on the Adda river on a single arch with a record 72-meter span.