Freusburg, Germany - My medieval "roots"

"Kartoffel Ferien" = potato holidays
When I was 6, I joined my home town's childrens choir, the Bochumer Kinderchor. Every September we would go to a youth hostel for the "Kartoffel Ferien", a left-over holiday from the time when all children had to leave school to help out with the harvest of potatoes, etc. Until I immigrated to Canada 7 years later, I spent a wonderful week each year in this castle first built around 1100 AD. I have returned several times since to visit friends. It is still a youth hostel and went through a huge change since my childhood by having a very large addition built onto the front and east side of it.
I got the photos from google images: the first one shows the front entrance on the right, #2 is a view of one of the back towers, the photographer stood in the dry moat, and #3 is a panoramic view showing the castle nestled among beech forests, sitting on top of a shale mountain
We used to sing a song called "Oh Freusburg, auf der Hoeh" meaning "O Freusburg, sitting up high"