"Judged by its immediate result, the massacre of St. Bartholomew was a measure weakly planned and irresolutely executed, which deprived Protestantism of its political leaders, and left it for a time to the control of zealots. There is no evidence to make it probable that more than seven thousand victims perished. Judged by later events, it was the beginning of a vast change in the conflict of the churches. At first it was believed that a hundred thousand Huguenots had fallen. It was said that the survivors were abjuring by thousands, that the children of the slain were made Catholics, that those whom the priest had admitted to absolution and communion were nevertheless put to death. Men who were far beyond the reach of the French Government lost their faith in a religion which Providence had visited with so tremendous a judgment; and foreign princes took heart to employ severities which could excite no horror after the scenes in France."
January 1, 1970
https://en.wikiquote.org/wiki/John_Dalberg-Acton%2C_1st_Baron_Acton