The Fraeylemaborg was one of the most important borg in the province of Groningen. These strong houses or keeps were built in the Middle Ages to store harvests and to protect their produce from robbers. Besides churches, these structures were the only buildings that used durable stone and masonry. In due time they grew to become centres of power and wealth. The Fraeylemaborg is located in the middle of the town of Slochteren which upon its discovery in 1959 gave its name to the largest gasfield in the world.
In 1475 there was already a farm with the name Frealemaheerd. The building originates from the 16th century. The left wing was built in the 17th century. In 1680 the borg was sold by Evert Rengers, son of the former lord of the manor, because of his family debts. It was bought by Henric Piccardt (married to Anna Elizabeth Rengers, Evert's sister), who borrowed the necessary funds from Stadtholder William III. Piccardt extensively rebuilt the borg and he also landscaped a huge formal garden in the style of Louis XIV's France. After Piccardt's death the borg fell into disrepair. In 1781 the Fraeylemaborg was sold to Hendrik de Sandra Veldman. He rebuilt it into the shape it has today. Among his innovations was the removal of two towers which had graced the front square.
References:Červená Lhota castle stands at the middle of a lake on a rocky island. Its picturesque Renaissance building is a destination of thousands of tourists every year. Its name Červená Lhota meaning 'red lhota' can be explained by the colour of the château"s bright-red roof tiles. There is also a park, where the Chapel of the Holy Trinity is located.
The existence of an original fortress on the site of today"s château is assumed from sometime around the middle of the 14th century. It was built on a rocky granite outcrop, which, after the damming of a stream and the filling up of a fishpond, became an island. The first written source is an entry into the land records from 1465, mentioning the division of the property of deceased Ctibor of Zásmuk between his two sons Petr and Václav.