The Traditional Castle Cake

This cake is a traditional cake for my family. My parents made it for me a few times when I was little, and I know it was made for my sister, and I think it was made for my brother also (with more masculine decor). For my oldest daughter's 3rd birthay, I was too busy to make a cake, and was planning on just buying her one from the store, but my parents were in town with us, and told me they would make her cake, so they made her the castle cake. She loved it, and is telling me she wants one for her next birthday.