“When I was small, I thought the Château and the Collégiale were the same thing. They were so close, they seemed to be interlinked. Was it a church or a château? Most of all, it was the wonderful playground of my childhood! The years passed but the two emblematic monuments remain inseparable.
http://www.neuchateltourisme.ch/en/decouvertes/town-heritage/collegiale-neuchatel.4709.html