“Did King Arthur Marry Maid Marian?”

I was sitting in a cafe when I overheard a conversation coming from the next table. A young girl of about 12 years old speaking with who I assumed was her mother sitting opposite her.
“Did King Arthur marry Maid Marian?” The girl asked. This surprised and amused me. I obviously failed to muffle my snigger as the woman turned to me and said.
“I know what you’re thinking, history is not her best subject.”