Probably some bureaucrat decades ago making an incorrect assumption that passed down through generations. Happened to my family. No Irish roots whatsoever, yet somehow we ended up with the annoying form-breaking apostrophe in our 'legal' name just because it begins with the letter 'o'.
"Oscar??? Surely, you're mistaken. I hereby decree your name to be O'Scar!" ~Arsehole circa 1937
It boggles my mind how so many websites and platforms incorrectly say my e-mail address is 'invalid' because it has an apostrophe in it.
No. It is NOT invalid. I have been receiving e-mails for years. You just have a shitty developer.