Please do not rename the pages, especially the Elena ones. I don't care if Castillo is officially her surname we're calling her page "Princess Elena". Some same goes for the rest. You can't just rename pages on her as you please.
I do not understand why her page is named "Princess Elena". We know her name is "Elena Castillo" and her name is very important to her identity. Mulan's page is named "Fa Mulan" because that is her name. Vanellope von Schweetz's page is named "Vanellope von Schweetz" because that is her name. Same with Charlotte, Kida and even princess Leia. None of these have "princess" as part of their article name. Please, rename the page. "Castillo" is not a common English last name, but it is a common Spanish last name. Her name means so much to many girls.