Classic names, for me, are names from the Bible or another religious text, or names that have been in use for, say +150 years or were in use +150 years ago or so, and it’s not a crazy spelling like Alizzabeth. I would classify all the names you’ve listed as classics. There’s also variants of the names I’d consider classic: [name_f]Elisabeth[/name_f], [name_f]Eliza[/name_f], [name_f]Marguerite[/name_f], [name_f]Margot[/name_f], [name_f]Mathilde[/name_f], [name_f]Lucia[/name_f], [name_f]Henrietta[/name_f], etc. Vintage names I also consider to be classic.