The Marsvinsholm estate was spoken about as Bosöe, Borsöe and Bordsyö in the beginning of the 12th century. By the middle of the 14th century it was owned by members of Ulfeld family. The possession were transferred to Otto Marsvin around 1630, who built the castle 1644-1648 and renamed it after himself. The name is derived from an Old Norse word for porpoise. The castle was in the beginning built on poles in a small lake. It forms a square in 4 floors and the northeast and southwest corners are provided with towers in five floors. 1782-1786 count Erik Ruuth made a thorough renovation. 1856-1857 baron Jules Sjöblad restored the castle.
Through succession and sales the castle has belonged to the families Thott, von Königsmarck, de la Gardie, Sjöblad, Ruuth, Piper, Tornerhielm and Wachtmeister. Count Carl Wachtmeister sold the castle and the remaining land to arl Jules Stjernblad in 1854. The castle was handed down to his daughter, the duchess Ida Eherensvärd. Her children, Rutger, Louise and Madeleine Bennet owned it until 1910 when it was sold to dame Johannes Jahennesen. 1938 it was handed down to his daughter, Anna Margrethe and her husband Iörgen Wedelboe-Larsen. Their son sold 1978 to Bengt Iacobaeus. His son Mr Tomas Iacobaeus is the current owner of Marsvineholm.References:
The Erfurt Synagogue was built c. 1094. It is thought to be the oldest synagogue building still standing in Europe. Thanks to the extensive preservation of the original structure, it has a special place in the history of art and architecture and is among the most impressive and highly rated architectural monuments in Erfurt and Thuringia. The synagogue was constructed during the Middle Ages on the via regia, one of the major European trade routes, at the heart of the historical old quarter very close to the Merchants Bridge and the town hall. Many parts of the structure still remain today, including all four thick outer walls, the Romanesque gemel window, the Gothic rose window and the entrance to the synagogue room.
After extensive restoration, the building was reopened in 2009. On display in the exhibition rooms is an collection of medieval treasures discovered during archaeological excavations. This includes 3,140 silver coins, 14 silver ingots, approx. 6,000 works of goldsmithery from the 13th and 14th centuries and an intricately worked wedding ring of the period, of which only two others are known to exist anywhere in the world. A mikveh (Jewish bath) has been excavated close by (13th/14th century). The Old Synagogue, the Small Synagogue and two Jewish cemeteries together form a network of historical buildings and sites which vividly portray the role of Jewish life in the history of Erfurt.