[HarryT]

Originally Posted by Nate the great

Except that the foundation is claiming that the editor is now the co-author, and in the EU copyright lasts under death plus 70 years. That includes employee authors, BTW.
https://en.wikipedia.org/wiki/Work_f...hire_amendment

Nobody is suggesting that Otto Frank's contribution to the book was "work for hire". He was presumably Anne's "literary executor" in the same way that Christopher Tolkien was for J.R.R.

It's ultimately for a court to decide, should it go that far, whether or not Mr Frank's contributions to the book were sufficiently creative to attract copyright protection.