Cause of death: Apoplexy
When it happened: Feb 1899
Where it Happened: Paris

Apparently, fellatio can be fatal. A former French president, Felix Faure allegedly died after summoning his mistress Marguerite Steinheil into his chambers. Though no one knows for sure what happened before his death, rumor has it Faure died from a sudden seizure that struck while Steinheill was going down on him.