The Queen is supposed to approve the names of her direct descendants. Think “Lilibet” was on the short list of approved names? Once again, a nickname has become the given name. Reminds me of the old comic that had a sister named “Lizard Breath”.

Notice both kids have names from his side and not one not one nod to Doria or the Markels’ sides. Kissy-kissy. They hate the royals but want the inheritance.
Lilibet is Queen Elisabeth’s nickname. She had trouble pronouncing Elizabeth as a young child and the name stuck.