it is only one castle 3268, but 4 wall extensions B 7836 and 3 tower extensions 7761 . And of course I used several brown baseplates and a medieval house made of steck. The upper yard is build with five baseplates 4 x 4 and eight 4 x 6.
I don't like the new lion castle (or the smaller falcon castle). The look great and make a lot of fun to play with. But it is terrible to build with them. There are no baseplates, useful connectors or walls.