Rüti Abbey
First mentioned in 1099, the donation of the St. Andreas Church was given by the House of Rapperswil as a spacious three-naved country church. The Burg Uster (castle) was first mentioned in 1267, as being in the possession of the Freiherr von Bonstetten. On 7 January 1300 Elisabeth von Rapperswil sold the pledge of the reign Greifensee to the knight "Hermann II. von Landenberg", including the Greifensee castle, the town and the lake of the same name, and a larger number of farms, as well as the pastoral rights ("Kirchrecht") in Uster. In 1438 the church rights ("Kirchrecht") were sold to the Rüti Abbey. The church was considered as a part of the so-called "Laubishof" estate that possibly was located at the nearby plateau where the Uster Castle is situated.