Help! My dad wants to name my daughter

Help! My dad wants to name my daughter

We just got confirmation that we'll be having a girl. As soon as my dad heard this, he insisted on naming her Joan.

I asked him why, and he said that he thought the world needed more people with interesting, history-based names. He used my name, Marc, as an example. He said that my name is based on Marcus Aurelius, a Roman emperor.

I then asked him what person that "Joan" was based on.

He replied, "well after Joan of Marc, of course."