It wasn't "Mr. Karenina" (I've never seen anyone use that form) he took issue with; he believed that the name should be translated as Anna Karenin rather than t

It wasn't "Mr. Karenina" (I've never seen anyone use that form) he took issue with; he believed that the name should be translated as Anna Karenin rather than the usual Karenina, since English does not inflect surnames.