What was the status of the dowry girl in ancient times?

In ancient times, bridesmaids were called Teng concubines, sometimes maids or slave girls, and sometimes sisters or even nieces of the bride. Its intention is equivalent to the human resources in the bride's dowry. Its intention is twofold. For the bride, after this, she will have some familiar teams, and going to her husband's house will not be completely helpless, and there will be no people who are bullied and crying. For the groom, this is also a bride price attached to the marriage, which shows that Zhang Yue families attach importance to marriage.