@1offnamechange , but it isn't unusual amongst Welsh-speakers.
Bear in mind that there aren't that many Welsh-speakers and the name is probably not known to many non-Welsh speakers, 9 is quite a lot.
Manon is very popular in Wales, but only 21 were registered in 2021,and some of those may have French heritage.
Also, it is listed under 'Traditional Welsh baby girl names' not 'unusual'. It's not particularly traditional, just a diminutive of Elisabeth/Elizabeth. Leusa or Beti would probably be the more usual diminutives
Ebrill is also listed under 'Traditional Welsh baby girl names'. AFAIK it's not a name. I've never heard of or met one and none are registered on Darkgreener.
Under 'Traditional Welsh baby girl names' I'd list names like Siân, Gwen, Catrin, Mari/Mair and the like, not Begw and Blodeuwedd. I haven't heard the name mentioned other than by my grandmother who if still alive would be about 115 yrs old. I've not heard of a Blodeuwedd other than in the Mabinogi.
It's not a case of being pedantic, the article has much wrong with it.
Under unusual names for girls it has Wren. Wren isn't all that unusual, but it's definitely not Welsh, and pronounced phonetically is dangerously similar to the word for whore.