Hammersta, Manor house and medieval ruins in Ösmo socken, Sweden.
The Hammersta site contains a manor house built in 1914 and medieval stone ruins situated on agricultural land near Landfjärden.
In 1426, Nils Erengislesson presented Hammersta as a morning gift to his wife Katarina Knutsdotter and constructed the stone house that remains as ruins.
The basement walls of the medieval stone house at Hammersta represent the most preserved structure from the age of knights in Stockholm County.
The manor complex includes two preserved wing buildings and several worker residences from the early 1900s, while the original 1680s main building was demolished.
Author August Strindberg resided in the western wing during the 1860s, and the parents of writer Ivar Lo-Johansson lived in one of the workers' quarters.
Location: Nynäshamn Municipality
GPS coordinates: 59.02417,17.98667
Latest update: March 15, 2025 20:58
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