I actually read up a bit on the difference between the two because of your reply. Castles are usually made of stone, fortified, on a high ground, surrounded by moat. Palaces are usually over the top, and where royalty actually live and call home.
From your pictures and description it falls under both. The old structure has a lot of stone materials, is on a cliff, with water on one side, making it a castle. I'm guessing they just later converted it to a Palace when the royalty decided to live there.
I actually learned a lot today, so thanks again for posting this.
I must have missed your comment before..
I believe that most palaces are originally built as fortresses or castles and converted later. This palace couldn't really have a protection role as it is accessible from the other side of the cliff easily, so that would not be difficult for enemies to approach.
My pleasure! This Thursday I will post about a castle from the same family, so you can compare them 🙂
Oh that is a good additional information, thank you. And I look forward to your next post.