Fiholm was first mentioned in 1275 in the letter of the king Valdemar Birgersson. In 1404 Eric of Pomerania donated it to the Eskilstuna monastery hosted by powerful Order of Saint John. After After Reformation the monastery was demolished and in 1562 received the Privy Council Kristiernson Gabriel Oxenstierna Fiholm as a fiefdom of King Erik XIV.
When Axel Oxenstierna in 1617 inherited Fiholm, he planned to build a castle. He hired Nicodemus Tessin the Elder as an architect. Two magnificent wings in the Franco-Dutch Renaissance style was completed in 1642. The actual main building was designed in 1642 by the French architect Simon de la Vallée in the Dutch Renaissance style, but it was never built.
Today the castle is owned by Charlott and Goran Mörner. There is a café and gift shop in a barn from 1864.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.