In Megillas Esther it says that Haman told the ones who loved him, and zeresh, about his wealth and his many children. Why did he have to tell zeresh about his many children? Hadn’t she birthed them? Can we learn from here that haman had more than one wife?
The Ibn Ezra explains that of course his wife knew she had children with him, but he was relating all of his good fortune, as in "I have so much money and such a great family" -- he was bragging not about the numbers but the greatness of his children.
Immanuel of Rome explains that he was saying that even though he had many children, that doesn't compare to the fact that Mordechai won't bow. His relaying the facts wasn't informational, but a lead in to the importance of Mordechai's refusal.