Among the six etiquettes, the welcoming letter and the ceremony had to be personally completed on the day of the wedding. The other two books and five etiquettes were all handled by the elders of both sides.
According to the Book of Rites, the family of the groom would present betrothal gifts to the woman's family.
Then, the marriage would be established.
After receiving the betrothal gifts, the marriage would be ready. Therefore, after the giving of betrothal gifts was completed, the marriage contract was completely established.
At this point, the marriage was more than halfway done. They just had to wait for His Highness to return so that they could arrange the marriage directly. However, everyone knew that the war in the North was tense, and His Highness was busy, so he naturally couldn't come back to get married.