WRT Shakespeare, it’s perhaps worth noting that Shakespeare himself wasn’t immune to unusual names.

He literally coined the names Jessica, Imogen, Miranda, and Cordelia (as well as some others which have more or less fallen out of favour today, like Ophelia, and Desdemona). And he popularised several more which would have been highly unusual in his time, like Juliet, Olivia, Viola, Beatrice, and Adriana.