Pope During World War II

This may be just a typo, or a transcription error, but if it is it's a serious one. The Pope during World War II was Pius XII (not Pius VII).

As we learnt last week (General Knowledge, Question 40): from 1903 to 1958, every Pope bar one was called Pius. That's Pius X (1903–14), Pius XI (1922–39) and Pius XII (1939–58). The exception was Benedict XV (1914–22).