Do you know how Genghis Khan, the emperor of the Mongol Empire, built such a large state? Did he build such a large state only because of power or was there something else? Let me tell you a historical fact about Genghis Khan and his the state and his daughters.
He used to get his daughters married to allied kings but he forced them to leave all their wives so they can marry his daughter and thus he used to get his daughters married to allied kings. Then he placed his new sons-in-law as commanders in his army and sent them to duty in the Mongol wars, while his daughter managed the affairs of his empire. And he used to make sure that his son-in-law died an honorable death in the front line of the war so he would allow his daughters to inherit them and their empire would also fall into the hands of Genghis Khan. In this way, without bloodshed, he used to take over the empire of his allied kings and from this you can guess that Genghis Khan was not only good at fighting but he was also very good at mind games.