Dream About Time Travel And Royalty

In this dream I don’t know who I was exactly but I was a man. I appeared in this huge, mostly empty castle. The castle looked dingy and a bit depressing . I somehow already knew I had teleported there from another time and was behind a large column. I watched as royal,medieval looking officials strolled in through large doors: the king and the queen, two guards and a prisoner. Then the scene shifted into a small courtyard where the king and queen sat in a corner of it. Two others stood by the gate to the courtyard:possibly the princess and her handmaid. The prisoner was strung up on a pillar. Chained around both arms and legs in a starfish position. I knew he was about to be executed. Somehow I knew I could time travel and had a notebook of proof of his innocence. As he was about to be pulled about, I jumped up, and somehow got rid of the chains from him and the stood before the royals, presenting the evidence. The man was freed and I was celebrated. Afterwards getting to know the princess and although she was stubborn at first, I gained her favor. Suddenly, I was teleported to a futuristic scene; similar to the game Cyberpunk. The same “princess” was sitting next to me on the couch and we were watching a movie. She looked different but I knew she was from the past, medieval life. The next scene I can remember was either the “higher-ups” found out I was a time traveler or they were after her. Regulardless, we were under attack outside of our home. I was shot sacrificing my life for her and then it went dark. I awoke outside of our door in the futuristic scene. I went in and she no longer knew who I was. I felt defeated and like I’d lost my whole world. I don’t remember much more after that.