Hi Denis,
you're right ! The small towers have been added from Zwirner in the 18th century !
Germany has about 600-700 of those smaller castles which mainly date from the medieval. Along the Rhine you find plenty of those "ruins", but in the country side lots of these castle still exist and are still used.
It is my very private interest - as I like castles too much

- to show them. The royal castles as Neuenschwanstein, Herrenchiemsee, Nymphenburg etc. are known more or less to everybody, but these small "treasures" of history, architecture and arts are, even for germans, quite often unknown.
Generally Denis, the pictures I publish are
always taken by myself ! Even those I have to take inside a location from paintings there and which I have to use - in the case of Moyland f.e. - to show the change during the centuries etc. !
Always on tour to "treasures" ... as our history is part of us ...

... Gabi