First of all, as a hostage.
In ancient times, although the society was feudal, there were certain court officials guarding and guarding the daily life of the people in every place. So no one will do something illegal for no reason and get into trouble. So are bandits. The purpose of robbing relatives is mostly for money, so they will take the robbed bride as hostage.
Second, become Mrs. Zhazhai.
Not all the robbed brides are rich at home, so those brides with poor families may end up with nothing, although bandits take them hostage and send messages to the bride's family. At this time, all they can get is the bride herself. If the bride has a higher value, she will easily become Mrs. Zhazhai.
Third, muddle through.
In ancient times, women were not all weak, and there were a small number of quaint people. If bandits rob a strange bride carelessly, they will probably let her escape unintentionally. However, even if the bride escapes. After returning home, she will also be pointed at by outsiders and doubt her virginity.