[1][2] During the 1560s king Gustav I of Sweden's master of horses, Jakob Henriksson, built the main building out of gray stone that we see today.
The ownership was only briefly disrupted by the lease of Porkkala Naval Base area to the Soviet Union after the Second World War.
[1][4] Sjundby is listed as a Built cultural heritage site of national significance and therefore protected by law.
[5] In 1417 a man called Lasse Skytte is named as the owner of Sjundby manor in written records.
[2] The next time Sjundby manor is mentioned in written records is in the mid-1500s when Jakob Henriksson Hästesko is named as the owner of the estate.
Under his time the estate gained land and the main building, which resembles a medieval castle, was built.
The newly established county of Sjundbygård included the areas of what is nowadays known as municipalities of Siuntio, Kirkkonummi, Ingå and Espoo.
Not a lot of information has been left behind of her time at the manor house but it is known that her mother, Karin Månsdotter, visited Sjundby.
Princess Sigrid returned to Western Sweden, as Finland was then the eastern part of the country, when she was married to Henrik Tott.
In 1618 the ownership of Sjundby was transferred to princess Sigrid's son Åke Tott who gained fame as a soldier.
[10] During the Finnish Civil War in 1918 the supporters of Red Finland briefly occupied Sjundby until the manor was liberated by the German troops.