I am late with sending my entry for this theme. It is due to a problem of internet connection....
The small town of Regensberg with a castle was founded in 1244 by the Baron Lütold V of Regensberg. The family seat (Old) Regensberg is in the field of community Regensdorf nearby Zurich and the "Cats Lake" (Katzensee).
The main reason for the establishment of Regensberg probably was the strategic location. Already 1302 Lütold VII was forced to sell the town to the Habsburgs, Austria. But in 1409 it was pledged to the city of Zurich.
1417 Regensberg was finally in Zurich's possession and was the seat of a provincial governor. In 1540 the village was burnt down, rebuilt and then named New Regensberg.
In 1798 the Helvetic Republic was founded and then Regensberg was affiliated to the district of Bülach.
After the end of the Helvetic Republic in 1803 it became the district capitale but lost this function in 1871 in favour of Dielsdorf.
In 1884 the castle was bought by a society of public utility which has transformed it in a home for children.