Biljoen estate was first mentioned in 1076. In 1530 Charles, Duke of Guelders, built the first castle and it was rebuilt by Alexander van Spaen (1619–1692) into the present day castle with four equal corner towers. The family Van Spaen rebuilt the castle again in the the 18th century. In 1795 French troops were quartered in the castle. After they left the castle was plundered and the interior largely destroyed. The damage was restored with amongst others ornamental plaster and ceiling paintings.
The estate was originally called Broekerhof, and was a place where taxes were collected. In 1076 it was donated by Henry IV, Holy Roman Emperor to the Sint-Pieter Chapter in Utrecht. In 1530 it was sold to Charles, Duke of Guelders. He in turn had to sell it again in 1535 because of debts. It came into possession of Charles' general Roelof van Lennep. Roelof's son Carl, mayor of Arnhem, inherited it in 1546. His son Roelof inherited it in turn in 1567. After family divisions it was sold to the baronial family Van Spaen in 1661. In 1849 baron Van Hardenbroek allowed Anna Pavlovna of Russia to use it temporarily. In 1872 it was inherited by the family Lüps, until 2008.
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.