転生したらお飾りにもならない王妃のようなので自由にやらせていただきます (Associated Names)

Queen Regina changed places upon giving birth. Armed with modern knowledge and memories of her past life, the current Regina struggled to escape her role as a mere tool for producing heirs. Furthermore, she was destined to be killed by her own son. Could she avoid her tragic fate? A medieval European isekai reincarnation story.