New Prince called

So how is it being pronounced? Like 'lewis' or 'Lou-ee'?

On the Today Show, they pronounced it Lou-ee.
If that is how they are going to pronounce it, I think it's cute. But then, I like old fashioned names anyway. When I was pregnant with my 19 year old daughter, my two favorite names for her were Veronica or Margaret, after two of my grandmothers. I really wanted Margaret and to call her Maggie, and my husband had an absolute fit. LOL He was into the more trendy, unisex type names that were so popular in the 90s, and I didn't like those at all. We ended up with a Rachel.

Sorry for the hijack!

Has a French vibe to me.

Lewis wouldn't be Germanic, as the 'W' is pronounced as a 'V' in those languages. I have seen Luis/Luisa here but no other spelling except for a Louis who was English.

Louis VIII (The Lion) was King of France and King of England for a couple years. The following Louis in the French royal family, King Louis IX, sealed the Treaty of Paris with King Henry III to end the 100-year conflict between the Plantagenets and Capetians. The future Louis X witnessed the sealing of the Treaty of Paris with his brother Philip. So, these names are all part of the English and French royal history and endlessly recycled.

George, Charlotte and Louis sound like the litter of a bourgeois French family. But I think the three names go very well together.

Maybe if we lived in the 1950s ... I have several small Williams and Katherines among my students, and Bill and Kathy are not used any more.  Will and Kate if they're shortened at all.  George would be George and Charlotte would be Charlotte.  Louis would more likely be Luis where I live.

But the most regal of them all has got to be...

I think that's "Louie" but fair enough. 

I love Arthur. Wish they would have worked George in there too for the day of his birth. Not fond of Louis (even though there are two in the family).

We didn't name our kids until a day or two after they were born, so I get that part.

My husband has a first name Lewis in his family tree from the 1700s.  There's a debate about whether the family was from Germany or Ireland, I was hoping this discussion was going to help settle it - I guess not....

Yep! May he be healthy, happy and one hell of a funky singer and dancer!

Tsk tsk tsk, no discrimination for spelling! You French snob...

For anyone wondering: pretty sure Lewis is anglicised. Ludwig would've been German. Louis French. All deriving from the old Frankish name Hlōdowik (Chlodowig). The further away geographically and culturally, the more phonetic transformations (and later introduction). Considering the Franks' obvious importance in the establishment of France, it makes sense its French variant has been so present throughout French history (and remains a classy classic for French babies these days). Hope this settles the debate for those wondering whether their Lewis family from a few centuries back was German or from around the UK: very likely UK. But if you want to trace it aaaall the way back, then yes, it's likely there's some Frank in there (but you would not need the anglicised name Lewis for that: almost every single modern-day European has quite a bit of Franks in their far-away history #weareallconnected #peaceout).

Sorry for the derailment, but why "very likely UK"  this particular Lewis settled in Pennsylvania in a time when quite a few of the Germans from the Palantine region were immigrating.   

Oh, that changes the statistics for your particular situation then. If you haven't been able to track family down to the UK, then it's possible they anglicised their German name upon arrival. You'd need to check how often this happened for migrants from that region coming to Pennsylvania. But you'd need to factor in other immigration waves as well since it's a very common surname, especially in Wales. Here's a good article to read up on the Welsh immigration in Pennsylvania ("From 1682 to 1700, the Welsh were the largest group immigrating to Pennsylvania. By 1700 they accounted for approximately one-third of the colony's estimated population of twenty thousand.")
Or maybe you're secretly of Jewish descendence (also the anglicisation of Levi)...

gillyp We were joking about the parents plotting to assimilate if Brexit went completely wrong...

You have misquoted me. This came from someone else. Like you, I don't think it is Germanic, due to the way the Germanic languages pronounce the letter 'W'