I actually have my mother’s first husband’s last name, and my father’s mistress-at-the-time’s first name...
My mother obviously didn’t know about the mistress, and I’ll be wondering for the rest of my life why she didn’t just get her maiden name back, or give me my real father’s last name, and if she had enough imagination to make up the story about my first name, or why people do or don’t do the things they do or don’t do.
Did I mention I tend to ramble?