How many Christians died in the persecutions?

The third-century Church Father, Origen, writing (Contra Celsum, 3.8) of the total of Christian martyrs up to his own time, in Rome and elsewhere, states that there were not many - and that it was...

Approximately 11 to 17 million people died due to the Holocaust. It is very difficult to know accurately as some records weren't kept or were destroyed. Of that amount, it is generally agreed that...

The answer is found in Fox's Book of Martyrs. It can be found online easily through a search engine.

The third-century Church Father, Origen, writing of the total of Christian martyrs up to his own time, in Rome and elsewhere, states that there were not many - and that it was easy to count them....

See link below. The exact number would be very hard to estimate, due to the fact that much of the persecution would not be publicized.