This article needs a big cleanup.
Very little of the info in the infobox is in the article. If that information does indeed come from a valid source, it needs to be added to the article proper, with sourcing.
These problems might be so great that the article's factual accuracy has been compromised. Talk about it here or check the revision history or Manual of Style for more information.
The St Bartholomew's Day massacre was a massacre of Huguenots by Catholics in France in August 1572 during the French Wars of Religion.
The First Doctor and Steven Taylor visited Paris before the massacre took place, and escaped as it began. (TV: The Massacre)