How can you talk about slave mistresses in the narrative? give examples

I believe I used this article for research when I answered this question before. I thought I had added information about the "mistresses" of the plantations, who of course, were the slaveholders wives. Check out the link below, it should help you formulate your answer.

Note, many plantation mistresses were known to be cruel, especially to female slaves who'd borne children to their husbands. These women were often treated cruelly or quickly sold, as were the children. Female slaveholders had no wish to keep the evidence of their husband's sexual behaviors around to remind them of their infedelity.