The main character of the historical series "Free Charter" is Polina, the illegitimate daughter of Prince Golovin. Her mother was a simple serf, so the girl has no rights to her father's estate and title. However, the man gives her a noble upbringing and excellent education. But when the prince suddenly dies of a heart attack at a ball, Polina is left without his protection, at the mercy of envious and hostile people. Her father's will is forged, and her free charter is destroyed, but she decides to fight for her freedom.