Can the Princess not ascend the throne?

Ying Jiuque wiped the blood from her hands: 【If I say I just did it in passing, will they believe me? 】【If I say I can produce salt, know where the gold mines are, and can lead armies into battle, will they believe me? 】 The old Emperor, hearing her inner thoughts: "... This child is simple and sincere; she saved my life and asks for nothing in return. She deserves a reward!" Afterward, it was as if no one understood why the old Emperor trusted Ying Jiuque so much. Her status soared, starting from County Mistress and climbing higher and higher. Her favor was so excessive that even Ying Jiuque couldn't understand why those people were so foolish. Could it be that her innate divine strength, her empathy for the people, and her step-by-step schemes... were all just for hollow titles like "Commandery Princess"? County Mistress, Commandery Princess, Earl, Duke, General... and finally, the uncrowned king who possessed the Northern Border! For her next step, aside from that supreme position, what else could bring her peace of mind? Could it be that a Commandery Princess cannot ascend the throne? Power has always been the best supplement for a woman.