The Harinxma thoe IJlst[1] family founded the Ylostins in the Middle Ages, probably around 1400.
[5] After the last Harinxma's passed away, the Ylostins came into the hands of local noble families such as Galama and Vegelin van Claerbergen, through inheritance and purchase and sale.
After much deliberation, the owner, squire Hessel Vegelin van Claerbergen from Joure, decided to demolish the large tower in March 1711.
[11] The state archives in Leeuwarden (Tresoar) still keep some documents relating to this,[12][13] including a map of the Ylostins and its immediate surroundings.
[14] The map shows the tower, the big house and other structures, surrounded by tall elm trees.