Finrantsuka no Osanai Ryoushu

After a tragic life as the neglected wife of the crown prince, Lizbeth is falsely accused of treason and dies in prison. But to her surprise, she reawakens as her seven-year-old self. This time, Lizbeth will use the knowledge of her past life to develop her territory and avoid reliving the same misfortunes. With a second chance at life, Lizbeth will meet friends both old and new on her path to finally claiming her happy ending. (Source: Tapas)