Alright kiddo, let me tell you about this man named Frederick the Great.
Frederick was a king who lived a very long time ago in a place called Prussia, which is now a part of Germany.
When he was a little boy, he was not very interested in being king. In fact, he wanted to run away and become a musician! But when his father, the king, found out, he was very angry and punished Frederick.
Eventually, Frederick did become king and he worked very hard to make his kingdom better. He made sure his army was very strong and he fought in many wars to protect his people.
Frederick was also very interested in art and science. He built beautiful palaces and encouraged artists and scientists to come to his kingdom. He even wrote books about music and philosophy!
But even though Frederick was a very smart and successful king, he was not always very nice to people. He could be very harsh and strict, especially with his family.
Overall, Frederick the Great was a very important person in history who did a lot of good things for his people. But he was also flawed, like all humans are.